So I *think* I have the lenses that I'm pretty happy with. I've been using a 70-200 f/4l is, 50 f/1.4, and the 28-135 is (which in the late future I'd like to swap for a 24-105 is, but now now). However, I have been thinking about a decent quality, but not overly expensive wider angle lense. 28 is certainly not very wide on my crop body (rebel xt) I don't care about it being super fast, as I would only use it for mostly landscapes/vistas, etc. (which reminds me I need a semi-decent tripod!), but I definitely want the optics not to be total crap. With that, and from reading a whole bunch of reviews at photozone I think the 17-40 f/4 may be a pretty nice lens. It's not overly expensive (certainly less than the 70-200!), and being an L should mean it's a pretty nice quality/build etc. But 17 with my crop body may not be very wide, and I don't know if I'd just be throwing my money away. Are there any alternatives? or will it be fine? Also, I've seen a few people around here asking for tripods, and some of you have been helpful with that... but if anyone knows what's the best I coudl get for just the 100 dollar range, I'd appreciate it. Glass is my priority right now, the rest will come later. Thanks!