JW, Like you said in the gallery section, if you are planning on doing the swap, and have the space for it, get a salvaged vehicle so you can pick up all the wiring, fuel pump, accessories, and computer. I am doing a swap with a 2004 5.3L, however I am doing it the easy way with a carb setup. There are two sites that can help with info on that generation of engine.
www.ls1tech.com and
www.67-72chevytrucks.com I have had to use this site as well as the others for researching the swap. I am basically in mocking up stage on my swap, installing mounts. I a crossmember style tranny/engine mount from CPP, however there are a ton of venders selling the stuff. So far they have worked fine. The one problem that I am still researching is exhaust manifolds as the truck manifolds I got with my engine dump right into my frame rails. If you have any other questions, I'll try and help.
Corey