I currently have a Rebel XT and a Canon 100-300 f4.6-5.6 USM that I use when I shoot sports. I am rounding up some money to purchase either a Canon 30d body or a Canon 70-200 F2.8. I can only afford one or the other right now, but plan on getting the other one when I have the money. I mainly want the 30d for the 5fps and the larger buffer. I would like some suggestions on which I should get first. Thanks.