you'll need at least 2 ton stands to start.
MW914 (mike), of course, doesn't even own a jack, because he wouldn't know how to use it. and he's only seen jackstands in pictures.
i have 6 ton stands too, because i like the clearance they give me underneath the car (and i need them for my jeep). Walmart has the best price on those (24.95 for a double locking set.)
i prefer the double locking, because it makes me feel only a slight bit safer. you could spend a little more and get a nicer jack, but $25 for that combo is cheap. and you get a creeper.
please deposit .02