well, you're in for it now... next thing you know, you'll be droolong over some esoteric tool and getting all excited over a bunch of sharp rocks... seriously, welcome to the afflicted addicted riflebuilders... if i'd known it were such fun, i'd have started this decades ago.
there are a boatload of good books out there- some are a bit on the expensive side, but if you figure the mistakes you won't make if you read the books, and the parts you won't destroy, they're well worth the investment. probably the best advice i ever recieved (and i pass it to you gratis) is:
DON'T BUY CHEAP TOOLS
[insert tirade here] get the best wrench, chisel, vice bench or whatever you possibly can. long after you've forgotten the price, the tool is still providing great use. if you buy a cheap tool, you'll remember exactly what you paid for it, and be dissapointed by about triple that amount.
good luck- also check out Jim Chambers' site- he's a wonderful fellow and he's got some really neat stuff.
msw