I had a "real" sim planned, but it fell thru at the last minute. My only option before the interview was Air Inc, so I passed thru ATL on the way to MEM. The sim wasn't that great (computer generated, no motion-it may be better now, I went in early 2001) but all I did was the FedEx profile...for 3 hours. At $300, it was a little steep, and some of my friends thought I was nuts, but I got the job and it was worth every penny. This is the place I wanted to work and the bottom line for me was, if I didn't do some sort of prep, then didn't pass for whatever reason, I would be kicking myself for the rest of my life over a measly 300 bucks.