A couple of comments. First, I agree with the other posters above.
In particular, Brian's comment above about renting bears repeating. For what you will pay in MFs, you could rent a 2BR at Bonnet Creek and not have the ongoing obligation.
For a timeshare system, however, Wyndham is very good. Go to Wyndhamvacationresorts.com and click "Explore our resorts" to see where they have resorts. Concentrate only on the Wyndham timeshare resorts -- ignore the associate/affiliated resorts, because they're very difficult to get into. I'm not sure of the exact number, but I believe you'll find 80 or more Wyndham timeshare resorts. All of those are pretty feasible to get into, unless you are trying to get something in very high demand -- Daytona during race week, Alexandria during Cherry Blossom Festival, New Orleans during Mardi Gras, etc.
TUG is a great resource. Here's a link to the Wyndham forum:
http://www.tugbbs.com/forums/forumdisplay.php?f=47
Even though you're paying nothing to get in, you're accepting an ongoing annual expense to own the timeshare. Be sure you do plenty of research, so that you completely understand all the nuts and bolts of ownership before you take the plunge.
May 2012 at Bonnet Creek should be doable. We went there last May, initially making reservations in December. In February -- less than 3 months out -- we ADDED two days with no problem.
However, one thing you have to be aware of with Wyndham is that you may face an extended delay in the transfer of the account. It seems to take an inordinate amount of time. We closed in July, and weren't able to use our account until mid-December. That's longer than most, but Wyndham is slow.
Also, be sure the Wyndham transfer fee is including in the quoted closing costs. The transfer fee is now $299.
Good luck.