Kevin, you really have many choices here...more than it would seem. Check the Canon Museum Link , this is for the New FD Mount you can select the other from the drop down. They had a 85mm f2.8 Soft Focus that came out in the early 80's that was very popular. The 100's came in f/2, f/2.8 and of course there was the f/4 macro. The 135's came in f/2, f/2.8 and f/3.5 and that was just in the 'New FD' mount. Looking at the FD mount (not New) the 85's came in d/1.2 (wow!) and f/1.8 (the nicer SSC lens), the 100's came in f/2.8 (non-SSC and SSC) so you get the idea...lots and lots of choice's.

Check with David Goldfarb here on APUG, he is a Canon user and seems to have very good knowledge of the product he can point you in the right direction. Enjoy and keep us posted.