Lightroom is Adobe's digital photography software. I really like it. (And I don't "really like" much software!) It competes with Apple's Aperture, which I haven't tried. (but I'm getting tempted to get a copy to check it out)
Lately I've listened to a few podcasts from/with the Lightroom developers. Being in the software development business I find it fascinating to get a peek inside other development, especially for a product that is innovative like Lightroom. The podcast feed is at:
For another view, check out this video interview with Phil Clevenger, the main Lightroom UI designer.