Just added the latest odds for The Ultimate Fighter 18 Finale this coming weekend which you can bet on over at Empire Betzone with 10k bets available.
http://www.mmatycoon.com/bookmakerpublic.php?bid=7714
Odds are subject to change but here are the starting prices below.
http://i610.photobucket.com/albums/tt183/Reider84/tuf18odds_zps7e7a2125.jpg