Like just about every amateur photographer, I am looking for ways to make more of my shots good shots. I have a Rebel XT that I've been using for about 3.5 years now but only in the last year or so have I been playing more with the manual settings. My main photography opportunities are while traveling and I'm traveling a lot both for business and pleasure these days. My main lens is a Canon EF-S 17-85mm f/4-5.6 IS USM and overall, I'm very happy with it. I also have a Tamron 80-210 f/4.5-5.6 that I'm pretty happy with. I've been considering upgrading to the 40D at some point in the not so distant future as well. Right now, the shots I am the least happy with are low light shots in restaurants and churches and such where flash is not appropriate (I also just don't like the way shots with the built in flash come out.) I also work with performing arts groups a lot so I am trying the be quiet and discreet with my photography and a tripod just isn't a good option. I've tried upping the ISO, using faster shutter speeds, bracing the camera against a wall or table, etc... but I still end up with too many dark, blurry shots. Two examples are below. They are both slightly edited. I tend to use a faster shutter speed since I figure I can correct for underexposure in Aperture/PSE better than I can correct for blurriness, but I've come to the realization that a fast(er) prime lens might be the next step to try. I was hoping for some recommendations. I want something that is relatively quiet, somewhere between 20 and 50 mm (I think,) faster than my zooms, and not too expensive. Am I on the right track? Any thoughts?