Kevin's list has teh winz0rz!!
Also:
http://www.kingpinperformance.com/
I have seen the guy from this place post about jdm tranny and engine swaps all the time on nasioc (he posts as both AZScoobie and Kingpin). I remember reading that they can now do a full v7 engine swap in a day, they have done so many of them.
example thread:
http://forums.nasioc.com/forums/showthread.php?t=668778