MOST NOTEWORTHY: Big 5 Sporting Goods (BGFV), Nutrition 21 (NXXI), Sonic Solutions (SNIC), AeroGrow (AERO) and Sequenom (SQNM) were today's noteworthy initiations:

• Nollenberger believes Big 5 Sporting Goods' (NASDAQ: BGFV) shares are fairly valued and would likely get more constructive near the $20 level and initiated shares with a Neutral rating.

• ThinkEquity said Nutrition 21 (NASDAQ: NXXI) has a number of clinically proven nutritional supplements that target the rapidly growing obesity and diabetes markets, and initiated shares with a Buy rating.

• SMH Capital initiated shares of Sonic Solutions (NASDQ: SNIC) with a Buy rating, on the belief that shares have been oversold.

• ThinkEquity is positive on AeroGrow's (NASDAQ: AERO) proprietary aeroponic technology and recurring revenue model and initiated shares with a Buy rating.

• Leerink Swann started shares of Sequenom (NASDAQ: SQNM) with an Outperform rating as MEDACorp researchers are positive regarding the company's MassARRAY system for genetic analysis, which is well-positioned for growth in follow-on SNP fine-mapping studies; Leerink anticipates in 2008, the company will launch iPLEX 3, which is currently in development, and reduce the cost of acquiring fine-mapping SNP data...

OTHER INITIATIONS:

• Dover (NYSE: DOV) was initiated at Morgan Stanley with an Overweight rating.

• Merrill started Akamai (NASDAQ: AKAM) with a Neutral rating.

• Pacific Crest started Wipro Ltd (NYSE: WIT) with a Sector perform.

• Susquehanna initiated Herman Miller (NASDAQ: MLHR) with a Positive rating.

• RBC Capital initiated Warren Resources (NASDAQ: WRES) with an Outperform rating.

Analyst summaries provided by TheFlyOnTheWall.com (subscription required).

When Warren Buffett announced he wanted to use between $40 and $60 billion to buy a company several days ago, picking a target for the billionairest of all billionaires became the favorite pastime of financial writers everywhere -- and our bloggers were as eager as anyone else to come up with just the thing for the guy who already has everything (and everything, in this case, includes bunches of shares of companies as diverse as dull sheetrock manufacturer USG Corp. (NYSE: USG) to hip shoe company Nike Inc. (NYSE: NKE)).

Of course, Buffett's needs are unique. First of all, the company has to be both big and a good value -- no 80x P/E multiples for Warren. It has to be a relatively simple business (I'm thinking nanotech is out), have a good management team and no dark and dirty secrets (so sub-prime lenders are probably off the list). Finally, the company should have solid, long-term competitive advantages.

Sheldon Liber suggests a couple that might make the grade: Allstate Corp. (NYSE: ALL), the insurance company, which at about $38 billion in market capitalization and a 7.8x P/E ratio fits both the "big" and "cheap" qualifiers. Plus, we all know that Warren Buffett loves insurance companies, and given its retail approach, it's not much of a competitor with longterm portfolio company GEICO. Emerson Electric (NYSE: EMR) also seems a good candidate with its $37 billion market cap and 19x P/E ratio -- but is it simple enough? Its business is, according to Hoover's, making "a host of electrical, electromechanical, and electronic products, many of which are used to control gases, liquids, and electricity." Hmmm.

When Gary Sattler suggests Warren might buy General Electric Co. (NYSE: GE)'s plastics division, it's a good concept (simple, well-managed) but the price is way too low at around $10-12 billion. A commenter, however, brings up a good replacement in Lowe's Companies Inc. (NYSE: LOW); it has a $47 billion market cap and a reasonable P/E ratio of 15.5x. What's more, it has none of the bad-management baggage of competitor Home Depot Inc. (NYSE: HD). Does it have a "moat," though? I suppose that's a question for Warren. He does own some of each company, meaning that he's already emotionally invested in the sector (a plus) although it's obvious from our near-tie in the Battle of the Brands that neither holds a substantial consumer-facing edge competitively.