For anyone doing this swap.... a Vette servo for the trans is a definite must-have! I finally got around to installing mine this weekend, and I can't believe what a difference it makes! 1-2 shifts at WOT will bark the tires, and 3-4 is very snappy. Although this mod mostly affects the 1-2 and 3-4 shifts, I can definitely tell that the 2-3 shift are much firmer also.
These literally take 15 minutes to R&R, and take no special tools. A pry bar, a couple small screwdrivers, a c-clamp, and a pair of pliers or channel locks. It really helps if you have a helper around when putting it back together to help get the cover back on, but it can be done alone.
The servos can be bought off eBay for around $20. I got mine from Oregon Performance Transmissions off of eBay, and have bought many other trans parts from them, including a stall converter several years ago. They have good quality parts. In fact, I think the Vette servos are TransGo parts.
These can be installed easily enough while in the vehicle, but save yourself a little time and effort and do it while the trans is still on the shop floor. You won't be sorry!!
Here is a great how-to:
http://www.gmfullsize.com/forum/showthread.php?t=98029