Looks like The CW picked up the new 90210 for a full season. I have to ask why, though. I mean, the idea was nostalgic-y fun, casting Jennie Garth and Shannen Doherty even more so, but the show SUCKS. It's really poorly written. It's really lame in a way that's not even worth sitting around making fun of it or turning it into a drinking game. I'd rather watch Prison Break, and I pretty much hate that show, but at least its unrealistic plot lines are funny to the viewer.
If you want good shows about teenagers in high school, watch Gossip Girl and Skins.