It's not about the gear.


If you don't know what gear you need, you have even bigger problems.


If you use an XTi, rent one or two more Rebels. Do not venture into a two-digit or one-digit body. I've tried to go back and forth with an XTi and something else; it's not easy, and it's not fun.


If you're going to rent some lenses, rent a 24-70 and a 24/1.4, or a 17-40 and 24-70, or a 17-55 and a 24-70.


Assume that you will drop a lens from 6' as you walk from the car into the venue. Know what you will do when that happens. Don't worry too much about telephoto - you can crop. On the wide end, there's no substitute for focal length.


If you don't know how to determine ambient light's color temperature and balance your flash to match, don't use flash.


LensRentals is the most amazing business to deal with. Figure out what you want, and they'll take care of you.