Dont know too much about the differences between DC1 and DC2. Do I need a code from DC1 to export into DC2? Should I just get DC2 because it is better? Any tips?

When I got my kinect, people recommended DC2 to me because I guess it was an all-round better game. I had fun with it, I'd say get it, if you don't mind prancing around like an idiot; you did get the kinect so I think you're prepared enough :P

DC2 lets two people dance at the same time instead of taking turns at playing the same part of the song, so for that it's probably way better. If you're just playing alone, however, pick the one with the most songs you like.