[HardcoreZ28]

MIG is the way to go if you're just learning and I'd suggest just ponying up the money for a 220 if you have the cash and the line for it. Stick isn't that hard to do either, but wouldn't be very conducive to automotive work.
As Ian said TIG is the cleanest/strongest method, but takes a lot of practice.

And WayFast...if you want to learn how to weld take a class at your local Vo-Tech. I've been taking one 2 nights a week and it's only about $150 for a 13 week semester.