Truthfully, I would just advise you to go to Airnet. Even if you got called from the pool for a class date now, you would most likely be still betting on a 5-6 year upgrade*. At Airnet, you would be getting paid a whole lot better then first year FO pay, you would be logging PIC time and have excellent IFR skills. You would also probably also get left seat in the lear within 2 years*, which would allow you to move on to bigger and better places. Besides, the cargo industry is handling this fuel mess a whole lot better then the airlines.

Airnet - Better pay, PIC single-pilot time, quicker upgrade to left seat of a jet.

Comair - Living off food stamps first year, SIC time in a jet, looooonnngggg upgrade.

*subject to change at any minute.