Well I ended up with what I think was a good deal...
I picked up an '09 Cannondale CAAD9 with tiagra deraileurs and sora (boo) shifters.
I wasn't thrilled with the shifters and the deraileurs aren't anything to write home about but the frame is in great shape, and it actually shifts pretty well, so the plan is to ride it for at least a year and see if I want to upgrade. In any case this set up will meet my needs for the time being, and I didn't have to break the bank.
I just got back from a quick 8 mile ride and so far so good. Brake pads need to be replaced but other than that, all I need to do is ride it.
So far I think I can keep my MTB as well..... at least until the wife finds out