Do you have any idea of the lighting conditions at the venue? I would suggest going in with 2 lens - the EF50mm f/1.4 (will be about 80mm equivalent on your 60D) and with the EF-S 17-55mm f/2.8 zoom. Since the second lens is around $1000, you could rent it from lensrentals.com or similar for 4 days...
Originally Posted by Ted Rak
Btw, I shot my cousin's entire wedding with just the 50mm f/1.4 mounted on the 5D Mk II...you can see those photos on flickr to judge how your images might look...http://www.flickr.com/photos/prabalg...7628512316257/
Canon EOS 5D Mk II · EOS 20D · EF 24-105mm f/4L · EF 50mm f/1.4 · Leica D-Lux 5