Yeah, just pick up one of the current 80GB's, they have backwards compatibility with PS2 games.
However they are coming out with new 80GB PS3's that will replace the 40GB ones, and won't have backwards compatibility with PS2 games. Though I'm pretty sure their also coming out with 160GB PS3's to replace the 80GB's and they'll still have BC....confusing huh? Lol, I think everything's just doubling on memory but the consoles are staying the same in their price range.
So don't worry, pretty sure backwards compatibility is going nowhere. No reason to have to dig around for a 60GB version as there are current BC versions still in stores.