Go check out the Rainshield O2 jackets. No jacket is super breathable, but these are as close as I've seen. Plus they cost about $30 which doesn't have a high bling factor but they're functional, comfortable, and will keep you reasonably dry and warm. I got mine at the LBS but have seen them at REI before.

Several long distance riders recommended them: http://kentsbike.blogspot.com/2006/0...bad-times.html