Perhaps the OP has a different mindset for 2009, that is:

1. booking through co.com
2. paying for less F seats by hoping for upgrades from BUF-LAS.

Whatever the reason, we can try to help him/her out (though this really should be in the MR forum).

1100 miles forces you to either fly in a higher-class fare (to get 150% EQM) or fly further south/east, or have a one-stop flight.

Your best bet is BUF-CMH, which has a stopover in CLE.

$302 A/I for a refundable ticket; approximately $50 less for a non-refundable.
Gets you 2000 EQMs.