I just came upon this thread on the Gentoo forums.
The page has a really cool video that shows you just how cool and smooth a well run Linux can look (turn on your speakers, there is some nice background music for it too).
I myself don't run any of all these fancy graphic things, I go for the minimalistic look and efficiency. But for those of you out there who are stuck with windows because it is pretty try taking a look at this and think again. The graphics is not a valid reason for staying away from Linux.