I'm getting a 15" powerbook soon, and being a student I'm poor, and don't want to spend money on features that are useless. Here's my question. Is the blackight for the keyboard really that helpful? I never owned a laptop, and I know the powerbooks reuse the f1-fsomethingorother keys for brightness, sound, and other stuff. I was talking to my roommate about this feature, and he said, "Oh yeah, there's been a lot of times when I was typing in the dark and couldn't remember where the keys on my keyboard were." So I was just wondering if the backlight is useful, or is it just one of the features that you show to your friends in a dark room, or is it something I might use when i'm trying to throw update my college newspaper's website?