I'm ready to brawl on the 9th! Me and my brothers reserved a copy Saturday. We also decided that our old copy of Melee was hopelessly lost and picked up a new one, so I've mostly been away from the Internet since then. Here's hoping that everyone else doesn't have to wait too long for brawl, after going through all the delays I can only imagine what it would be like to have to wait until fall.
Anyway I found out about one stage that I didn't know about before, the original Donkey Kong stage (75m), and I found it at the most unexpected of places: our good friend at the green site has posted a guide for Brawl. It has information about all the characters and stages including how to unlock them, so it's worth checking out, and it's easier to get info from than YouTube videos.