Thanks for the links. Ubuntu sure does consume some power (7.10 consumes the most when compared to other Ubuntu releases plus Windows XP and Vista) but only about 2-4 watts more. So not bad! I took a look at 7.10's power options and there aren't a ton there . . . Vista on the other hand has some nice options though.
I guess when I get my wireless card to work in Ubuntu, I can see how long the battery last. I'll keep you guys updated.