Lisa Jackson seems to be the frontrunner for the EPA. I think this is a very solid pick, both because she currently heads up an auction-based effort to reduce greenhouse gases, and because she is currently slated to be New Jersey Governor Jon Corzine's Chief of Staff. Auctioning is the way to go, and I implicitly trust Corzine. Absent any outcry of environmental activists, she seems like a very good person to head the EPA.