As Rob said, it depends on what you like to photograph. I know I would really miss my Canon 10-22mm; I don't use it that often, but there are times when nothing else will do. YMMV.
On the other hand, if I were you I'm not sure I'd be lusting after the Nikon AF 80-200mm f/2.8 D. Yes it delivers great IQ and yes it's built like a tank, but with that old-style AF mechanism it's seriously clunky compared to the Canon and Sigma equivalents. I think I'd be looking at the Sigma 70-200mm f/2.8 instead, or trading some body parts to get the Nikon AF-S 70-200mm f/2.8 VR.