Fun Blitz Game

I was messing around on ICC and played a game I was proud of in the I can play cool tactics against weak opposition kind of way. After the unusual Nimzo-Larsen opening, we reached a position that could be described as a Nimzo-Indian with colors reversed. While I had planned on applying positional pressure to black's doubled c-pawns, he blundered, giving me a tactical opportunity for a quick knockout. What would you play for white in the position below? I think there are two answers that are about equally good.