Completed Black, and I'm up to iccirus city on White. I'm taking white slower than I did black, I mean I had completed the game by the next weekend! (Then I went out and bought white. Go figure.)

In case anyone's interested, I thought I'd post my teams :3

Black:
Samurott, Victini, Lilligant, Reshiram, Zebstrika and Krookodile. (Victini and Reshiram are replaced by Charizard and Mienshao in battles where legendaries aren't allowed)

White:
Serperior, Litwick, Carracosta, Axew, Swoobat and Scolipede. (Current team)