He recommended the 17-55mm f/2.8 IS. It certainly isn't cheap, but it is undoubtedly the best general purpose zoom for a crop sensor camera (that is, for the XSi, T2i, 60D, 7D, etc). Personally, if I were limited to one lens, it would certainly be my choice.


Here's the last thing I shot with my 17-55mm f/2.8 IS. Your results may vary, though.... :-)