A really good book that covers all types of welding is The Welders Handbook, by Richard Finch. Easy to read and lots of useful information. Covers everything from gas welding to plasma cutting. Its under $15. on Amazon.
A few months ago I bought a Miller sincrowave 200. I've been practicing tig welding mostly on sheet metal. It's not as easy as some people make it look but I'm getting it. Do yourself a favor and save your money for a good name brand machine. You'll be much happier in the long run.
Ted
