Finally my most important question... I'm looking for a on camera light for my GL2 preferably with the battery mounted to the light. (I'm looking for something good for interviews but capable of very high light output as well) I'm trying to avoid lights where the battery mounts to your belt, but I'll give in if somebody has to suggest a light of this type. I've been sorta looking at "Paglights" what would you guys recommend?

Any light using power from the camera's battery will not be that bright... Canon makes one to fit the hot shoe which is around 5 or 10 watts - not high powered. Unless you're working with a specific format of interview which requires you to interview people on the street, etc. you're better off shooting in a studio with separate lights.