New Nickel?

I think I remember hearing something about a new nickel a few years back in conjunction with the Lewis and Clark commemoration. But apparently, I wasn't really paying attention, because we've got lots of new nickels, which I discovered when I pulled one out of my pocket didn't recognize it as our nation's currency.

I don't think I like this 2006 Jefferson as much as the 2005 Jefferson.
What do you think, Dear Readers? Which Jefferson is your favorite?