Thanks for the welcome!
I ordered GM-LS Series: The Complete Swap Manual and How to Swap GM-LS Series Into Almost Anything. They should be here in a few days.
As far as my goals, I'm looking for a fast and fun daily (or every other day) driver. I'm somewhat open on what frame to use, but I'd love a 240SX, RX7, Miata, or something similiar (RWD, small). I had an old Toyota Supra back in high school and wouldn't mind finding one of those, but I haven't found any resources on it and the fabrication stuff would probably be too hard (plus that car is real heavy - I'd have to really gut it). The 240sx/RX7 seem really hard/expensive to find, so not holding out much hope for that. I think I'll be patient and see what I can find for cheap. I'm not in any big rush.
Any recommendations on places for finding rollers? Tips for what to look for when I find one? Craigslist seems like the best bet, but I was also considering calling up some junkyards.
As far as an engines, from what I've read, the Chevy truck engines are a great bang for the buck. That seems like the best path for me. Anything that pushes ~300hp sounds like it would be a good starting point, and with some modifications, could easily push 400.
That's about as much as I have sorted out at this point!