Has anybody ever painted their cars themselves??

I was wondering if it could be done......i have a '96 accord ex with alot of scratches....its been keyed 3 times and I really want to paint it black .....however, I've got alot of other expenses and was just wondering if I could save a few bucks and maybe rent a spray paint gun and do it myself. Any suggestions as to whether it would be worth it would be greatly appreciated.