When the entire mutual fund industry is up in arms about a new form of ETF, should investors take note? You bet they should.

There's an interesting article over on SeekingAlpha by HardAssetsInvestor. The article focuses on the Exchange Traded Note product, something I've written about previously. The ETN is similar to an ETF in that it's a fund that trades like a stock. Unlike ETFs though, the ETN is not backed by the underlying assets. Rather, it's a zero-coupon note (essentially, a bond) that's backed by its underwriters. So, it throws an added layer of default risk into the whole investment game.

Where things get even more interesting is the tax treatment of the ETN product. Says HardAssetInvestor's Brad Zigler, "No tax consequence befalls the noteholder until the security is liquidated or matures. Taxes during the holding period? Zip. Nada. Bupkis. That beats the heck out of the tax treatment of mutual funds, too, which distribute income and capital gains." Unlike ETFs investing in commodities which are treated with a complicated tax structure on the futures the funds invest in, ETNs don't pass these taxes through to investors.

How should you invest $10,000 in the coming year? The question was posed to some of Wall Street's most respected seers by syndicated columnist Andrew Leckey, whose Successful Investing column appears in over 150 newspapers.

Here, courtesy of The Bull & Bear Financial Report, 9 leading Wall Street experts -- Elaine Garzarelli, Richard Crippps, Sheldon Jacobs, Don Phillips, Richard Yamarone, High Johnson, Mark Johannessen, Curt Weil, and Paul Nolte -- offer their answers to the $10,000 question.

"Amid relentless volatility in 2007, every participant last December produced an increase over the past 12 months. Our pundits for a second consecutive year are spreading their bets because there are so many economic and political wild cards in the coming presidential election year.

In the past, Richard Lehmann has recommended positions in both energy and agriculture in his Forbes/Lehmann ETF Investor. His latest recommendation is a single fund that invests in both.

The advisor explains, "We've felt that oil prices would likely continue to remain high, mostly because OPEC has control of supply and has become accustomed to $60 plus oil rather than the old $35 target price."

He adds, "We've also recommended positions in agriculture Fund because distortions caused by increased ethanol production has caused an increase in corn prices, which translated to higher wheat and soybean prices as farmers switched production to corn."

Now, he says, there is a fund that tracks not only agricultural commodities but also energy prices at the same time -- the iPath Dow Jones-AIG Commodity Index Total Return ETN (ASE: DJP).

Actually, this "fund" is not an ETF; rather, it is an ETN, or Exchange-Traded Note. Lehmann explains, "ETN's have an advantage over ETF's in that they don't have to pay out distributions and are treated like a zero coupon debt instrument or a promissory note backed by Barclays."

This ETN, he notes, tracks several commodity sectors. According to Lehmann, the fund has 35% invested in the energy sector, 28% in the agricultural sector, 19% in industrial metals and 9% each in precious metals and livestock.

He suggests, "This ETF will tend to be uncorrelated with the broader equity market. Barclays invests in the respective futures contracts and keeps any remaining cash in Treasuries."

Each day, Steven Halpern's TheStockAdvisors.com features the latest investment ideas and market commentary from the financial newsletter community.