It's easy! Don't stress it. Here's some quick rundown:
Tools: I'd say gloves, a torque wrench, and an extension.

1) Turn car off Let it cool
2) Take out the ignition wires, make sure you either label them so you know where they go where or use a diagram.
3) Take the propper size hex (don't know off top of my head, I have it at home) and loosen each one, might be a little tight, but shouldn't be bad. Also, you might need an extension on the wrench if your plugs are really recessed in, like mine. It might be easier if the hex adapter you use has a built in rubber seal inside so it can help pull out the plug. Otherwise, use a rubber hose to pull out the old plugs.
4) When installing new plugs, put a lil bit of anti sieze on the threads, a LITTLE, not neccesary, but doesn't hurt. Either hand tighten them back in (keep tightening until it stops, then about 1/4 more, don't overtighten) or use a torque wrench at the propper torque.
5) Put wires back in, if the wires are old, doesn't hurt to change them every few years (I'd say maybe 3 years or so).
Good luck, hope this helps!