Highly recommend Wingware (Score 1)

I've been using the Windows version of the Wing IDE for several months now and it's the best money I've ever spent on an IDE. Yes, it's commercial software, but good tools are worth it if you can't find an open source version that works for you.

Comes in versions for Win, Linux and OS X. A timed trial version (otherwise uncrippled) is readily available. I hear the authors/company are active in the local Bostun Python group, but I haven't made it to a meeting yet.