Skyhawk

Im going to swap an engine into my car over the summer and i can get an LT1 for a lot cheaper than i can an LS1...ive been looking up stuff and i cant seem to find out whats different from swapping an LS1 and an Lt1. If i get everything, Engine and auto tranny, what else is there that i need? How much harder would this be to do than swapping in an LS1? Me and my friend and this mechanic i know are going to be putting it in over the summer and i was just wondering exactly what we need. Does anyone have a link to a website on what i need? I looked in the engine swap thread above but there was nothing in there about swapping a LT1 into my car. Thanks for the help.