I love wide lenses. So moving to digital was tough for me. My first digital SLR was the EOS 1D and I immediately bought the Canon 15mm fisheye. I already had the Canon 20mm f/2.8 and I've found that it's a great "normal" lens for the 1D. But the 1.6x crop factor on the 10D is another story. For that I use the fisheye a lot. It distorts pretty seriously, but for most of what I do, that's not really a bad thing.

Anyway, I'm happy for you. I think you'll find your EOS 3 gathers a lot of dust. That was my last 35mm SLR. I kept it for a year, didn't use it once, and then sold it to my dad, who loves it. At least it stayed in the family.