Betting on the outcome of a buyout is no easy feat. Will there be a heated auction? Or will the bidders have doubts and want price concessions?

The result is often much volatility. Just look at Beckman Coulter (BEC), a top medical diagnostic instruments company. In early December, the company put itself up for sale and the stock price surged to $72. Since then, the shares have traded in band of $71 to $75.

As the economy rebounds and credit markets warm up again, it looks like private equity firms are going back to work -- on big deals. According to Bloomberg.com, Apollo Global Management is prepared to offer $12 billion for Sara Lee (SLE). The transaction would also include investor C. Dean Metropoulos -- who bought Pabst Brewing in 2010 -- as well as Bain Capital and TPG.

It looks like this is a viable offer even though a strategic buyer is interested (which often can justify a higher valuation). This is JBS SA, a beef processor based in Brazil. An acquisition would certainly have lots of synergy, creating a vertical operation. Interestingly enough, JBS may seek the help of the Blackstone Group (BX).

J. Crew Group (JCG) was nearly 17% higher Tuesday morning thanks to rumors of a potential buyout.

The Wall Street Journal (subscription required) reported that a pair of private equity firms are closing in on a deal to purchase J. Crew for $43.50 per share cash, or $3 billion. One of the potential new owners is TPG Capital, a former owner of the company. TPG would hold a 75% stake in the company, with LA-based Leonard Green & Partners owning the remaining 25%. TPG previously owned an 88% stake in JCG in 1997.

In October, private equity powerhouse, TPG, scored a big win as it took Myer (which is a retailer based in Australia) public. The gains came to a mouth-watering $1.46 billion.

But now there's a huge problem; that is, the Australian tax authorities sent TPG a bill for a whopping $628 million. Its for back taxes, as well as penalties.

There are chills spreading across the executive suites in Corporate America. As seen with the latest from the U.S. pay czar, there will be 50% pay cuts -- on average -- for 175 executives of firms that received federal money.

Might this spread like a virus?

It's too soon to tell. However, there has been a refuge; that is, private equity. Right?

One consequence of the credit crisis shutting off the debt financing LBOs used to make acquisitions is that private-equity executives increasingly find themselves feuding over power, money, and strategy. Bloomberg provides details of the ouster of Dominique Megret, former CEO of PAI Partners, France's biggest private-equity firm.

Lionel Zinsou and others partners delivered an ultimatum to Megret: they wanted more say in running the firm or they would resign from the investment committee.

Back in October 2007, Silver Lake and TPG took Avaya private in an $8.2 billion deal. While the transaction involved a good amount of debt, it looks like the company has firepower. That is, Avaya has agreed to pay $900 million for Nortel Network's Enterprise division (the transaction will also involve $15 million in employee retention payments).

The transaction was the result of an auction, which appears to have had some juice. Keep in mind that Avaya's original bid was for $475 million.

According to the Wall Street Journal, China's government recently has pushed development of its local private-equity industry so that Chinese investors can get in on the country's private-equity deals. To that end, Chinese officials have tried to lure foreign money managers to raise funds from local investors.

Hong Kong-based First Eastern Investment Group, which plans to raise six billion yuan through a new wholly owned Shanghai subsidiary, and Asian brokerage CLSA Ltd., which plans to raise a 10 billion yuan fund through a joint-venture with state holding company Shanghai Guosheng Co., are just the latest to establish local-currency private-equity funds in Shanghai.

Private equity is about continuous dealmaking. But, with the wrenching credit crunch, activity has been horrible.

So, what to do? Interestingly enough, it looks like some of the top private equity operators are signing up for board duties.

Look at GM, which this week announced five new members to its board. In fact, three of them are from major private equity firms: The Carlyle Group's Daniel Akerson, S. J. Girsky & Co.'s Stephen Girsky and TPG's David Bonderman.

What's going on here? True, private equity has taken quite a few lumps over the past couple years. For example, Bonderman lost a bundle on his Washington Mutual transaction (which was one of the worst private equity deals in history).

It was just a couple of weeks ago that BusinessWeek reported on Micron Technology Inc.'s (NASDAQ: MU) effort to diversify with an acquisition of DisplayTech, a producer of display screens such as those used as viewfinders for digital cameras. Micron, one of the largest memory chip makers in the semiconductor industry, has been reporting losses over the past two years due to steep declines in the price of computer memory.

DisplayTech has been developing a new technology called "pico projection," which can produce crisp images from small devices. This innovation could make it possible to deliver a business presentation from a BlackBerry without having to lug along a laptop and full-sized projector.

Buyout funds managed by private equity giants Apollo Management LP and Blackstone Group LP (NYSE: BX) are among a growing number of limited partnerships that have experienced sharp declines in value, reports the Wall Street Journal, which highlights the economy's impact on such funds, as well as the influence of mark-to-market accounting.

Apollo and Blackstone recently disclosed to investors the values of their last buyout funds at year-end. Apollo Investment Fund VI LP, a $10.1 billion investment vehicle that closed in 2005, was held at 34% below cost. Perhaps the most notable Fund VI deal is Harrah's Entertainment Inc., which has struggled with its debt covenants. Apollo and TPG Capital LP acquired Harrah's in January 2008 for $27.8 billion.

Over the past few weeks, we've seen some of the extensive damage done to the mega private equity operators, such as the Blackstone Group LLP (NYSE: BX) and KKR.

Now, according to a report from Reuters, we've got the details on the performance of TPG. And, of course, it's ugly (interestingly enough, TPG's roots are in the distressed investing category).

About 20 years ago, KKR fought hard to win the biggest buyout in history (at the time) – that is, the $25 billion purchase of RJR Nabisco. It was a crazy deal that ultimately turned into a best-selling book, Barbarians at the Gate: The Fall of RJR Nabisco. There was even an HBO movie about the antics.

Unfortunately, the RJR transaction turned out to be a dud. Actually, the company nearly went into bankruptcy. For the most part, the company had too much debt, which was a dangerous thing as the economy slowed down.

It was a tough lesson but KKR went on to post strong returns on subsequent deals. Right?