A few days ago, I picked up a brand new madone, and now feel compelled to spend even more money. I've been planning to upgrade my computer for a while, to something that has a HR monitor and can export a ride profile to my PC. For the past year, I've been typing my info into an excel sheet, but I think I've reached a point where full analysis of rides can be justified.

I haven't really considered anything with GPS, but wouldn't immediately eliminate the Edge 500, or something around that price point. What computers do you use that export to PC? How do battery lives compare?