With your fairly stringent requirements my guess is that you will need at least two lenses. As leonak
says, the EF-S 10-22mm f/3.5-4.5 USM has to be a strong contender given your requirement for tightly controlled geometry. Check out Gordon's review and video tour
. Another possible contender might be the Sigma AF 12-24mm f/4.5-5.6 HSM EX DG which PhotoZone reviewed here
. They also did this review
of the Canon 10-22mm lens.
For a single lens to complement this, the EF 28-135mm f/3.5-5.6 IS USM (PhotoZone review here
) might be worth checking out. If you can run to a three lens solution then read Gordon's Rebel XTi lens upgrade group test
for your second lens and then, for your third, consider the EF 70-300mm f4-5.6 IS USM which, according to the PhotoZone review
, is a "hidden Canon L lens
Bear in mind, please, that I own none of the lenses above and my comments are based on reviews done by others. Nevertheless, I hope these ideas get you started with the decision making.