Best sites for muscle info./learning?

[wikked]

So I've always wanted to restore/rebuild/own an old school, mid 60's - early 70's, snarling/roaring, ass-kicking car.
The only thing I really know about are modern cars with lots of wiring & electronics.
I want to read up/understand and how things worked back in the day with carbs & what the hell a dana rear end is, matching #'s, powerglide trans's, and all that fun stuff.

Also, where's the best place to find older cars for cheap? I wouldn't want anything that'd have a rusted/rotted frame, or excessive rust/welding needed. I do realize that I wouldn't find anything in that good of shape for next to free though.

I'm not looking for something to fix & resell either, that's not my motive.
My dad had a '60's-ish Nova, and my mom had a 70's-ish 442? Cutlass (that she sold in great running condition for $50 in the 80's ), so I don't think they'd mind if I drug something into the driveway someday

Thanks!