Actually rover, I think you have an excellent chance of getting accepted into a Canadian school.
Schools like Calgary, Ottawa, and Windsor thrive on candidates like you. I know that Calgary has had professional athletes attend in previous years. A few years back, the police chief even attended LS. All three schools try to bring students with varied backgrounds into their school.
Don't be discouraged by the replies you get. Your best course of action is to contact the schools and see what they say. I'd be surprised if they didn't react positively to your athletic background.
Thanks for the positive vibes 'atlasonfire'. I was surprised to see this thread show up again! It was last october when i originially brought up my case. Since then things have happened. I've applied to a whole bunch of american and canadian schools. So far I've received 4 replies. Thomas Cooely - accepted with 50% scholarship, Ave Maria - accepted, Syracuse (95th USNR) - accepted, and George Washington - Dinged. Of course I expected the ding at GW. So schools ARE accepting a Professional Athletic background. Canadian schools are still unknown yet. I've applied to Calgary, Windsor and Manitoba. Manitoba under special consideration. Oh yeah, Mcgill too, but that's a stretch. However, I do like my chances there with a professinal athlete background. It does help! Applying to law school is an interesting process isn't it?!
Good luck with your pursuits.