I know of a guy who does Sim prep and interview prep. I've heard great things about him regarding the sim. I used him for the interview prep for a UPS interview...he was SPOT ON! His name is Adam Hughes
513-604-3906. Its the best money you can spend prior to the interview!!! I believe his sim prep is done in CVG. He's been doing it for approx 14 years, and is a true pro.