shaggybevo.com
This... or, just use the "Yahoo Pick 'em" thingy to run your contest. The problem with that is, it requires picking too many games each week and you can't choose which games it includes on a week by week basis. However, the record keeping for it would be virtually non existant and people can make picks through their online software.
If I were do set one up for CFB, I'd do it like the "Hilton Contest" for NFL. Have a set entry fee, decide payout before, (Winner takes all, 50/30/20, etc.) use opening lines each week, make picks on any 5 games of your choice (sides only, no totals), 2 pts for correct pick, 1 pt for push, 0 for loss. Much better format than Yahoo, but would require somebody to do a bunch of extra work sending out opening lines and keeping the spreadsheet. Could likely keep it via GoogleDocs and create a login for all, tho?