Hello folks... I'm looking for a walkabout lens to replace the kit lense on my 350d. I already have a 60mm Macro and the Sigma 70-300 dg apo lense so was looking for something inbetween these for general use and to stop the need for lense swapping all the time. I have a budget of under £200 (and am happy with used lenses), and liked the build quality of the canon compared to the sigma (especially the USM) - so I narrowed it down to the canon 17-85 f/4-5.6 is or the 28-135 f/3.5-5.6 Somehow the 28-135 sounds like a better lense with the wider f stop and longer zoom range, but it's actually cheaper than the 17-85... Does anyone have any experience of the two? Top tips and things to bear in mind? Or even better, know of one for sale?? Cheers, Nelson.