my advice: clean your garage very well, with lots of work space to lay out the parts you take off. keep you're digital camera handy to take pictures as you go (so you dont get confused where things go when you put it back together) take lots of pictures as you disassemble stuff. put all the parts in paper grocery bags, mark the bags (valve covers, valve cover bolts, push rods, etc in a bag, mark it) just keep disassembling stuff carefully until you have the heads off. those books are more confusing than they are good in my opinion (at least to me, i'm a hands on kind of guy) the key is to have a clean shop, no distractions, and push to get it done as quickly as possible, the longer the project drags on (over a few days) the more you'll start forgetting where parts go, loosing stuff etc. you can also use masking tape to make tags on wires, hoses etc and write on them with a sharpie to help you remember.
you're order of disassembly should go something like this:
1: remove air box, and related components
2: remove radiator and related components (belts etc)
3: remove upper intake,
4: remove valve covers etc
5: disconnect fuel lines, wiring harnesses etc and remove lower intake
6: unbolt heads, remove them. take the heads to machine shop to have checked for cracks, and resurface or replace heads. you will need new head bolts too
that's it in a nutshell. of course there are other parts and procedures i did not list in that quick liist off the top of my heads (alternator, and other accy's have to be removed at some point etc) and be sure to torque the heads properly (google torque specs, order, and stepping instructions) it's really not a hard job just takes attention to detail and patience etc. you will need a large (at least t55 i think) torx socket for the head bolts.
it'll run great when you're done. especially if you install new heads
