tranny

I dont know if Im just blind or what, but I was trying to find some info on the difference between a lock-up and non lock-up aod. Can anyone clear this up for me? :) Also, were is a good place to look for a more performance type aod? I already know about FBperformance, Lentech, and ford-aod.com. I was just wondering if there were any others that I dont know about. (Other than TCI, and performance automatic) Thanx for ANY info. I always helps!!!