i really need to start learning tig welding!

this is a 'down and dirty' setup, and won't do aluminum (dc only) but it looks like a viable option for learning without dropping a grand right off the bat for an entry level 'real' tig setup. this guy gives a pretty good breakdown of the basics for a beginner, without being snooty or assuming you already know as much as he does.
http://www.earlycj5.com/forums/showthread.php?62250-Buzzbox-T.I.G.-Welding-101