I got an XTi a few months ago, got the kit lens and the 50mm 1.8f. I love the shots I get with the 50mm, but I hate that I have to be so far away to get everything I want in my shot. I take lots of photos at local music shows, and I can't really fit the stage in. I also don't use a flash since I like to capture the lighting at the show... Basically, would the 17-70 be fast enough when wide open or about 25~30mm for not needing a flash? I tried the kit lens this weekend and got as close as possible with as much light as possible in the shot and they still were crappy. I would like another prime, but they seem really expensive, and the 17-70 looks like a good stop gap. Any one have any other comments / suggestions?