For a main computer I would definitely go for a 780g chipset at least. The one Daggs linked is one of them. I've got my Phenom II x3 720 running just fine on my 780g launch mobo.
I have one of the nvidia ones for a secondary comp cause I got the mobo cheap on craigslist. Even there it annoys me somewhat. Mainly driver stuff. But it's running now... Although I wouldn't put anything higher than just AM2 CPU's in it.