Here are a couple of the threads that Paul was referring to- you can probably find more by doing and advanced search.
http://tomatoville.com/showthread.php?t=27216
http://www.tomatoville.com/showthread.php?t=26754
I'm still experimenting, but I usually mix some compost in the hole, dip the rootball into a fertilizer mix, and then spread, mix, and water in a dry organic fertilizer in a circle about 3" from the stem.