As long as you use the right fluid and fill it to the right level then there is nothing more to it. Plus how do I know the dealer will do it properly since the effect of a poor job may only show up after a few months.
There is a rebuilt site on ebay for ~1,800.
http://stores.ebay.com/Phoenix-Remanufactured-Transmission_W0QQsspagenameZl2QQtZkm
I am going to stick a wire thermocople down the tube to read the ATF temperature and then do the final level check.