Welder advice - where to start

I usually never recommend the most expensive and I still won't, BUT, if you are really wanting something to weld sheet metal good, then I have to recommend a TIG. They are expensive, but nice and very controllable. Which one is up to you. None of them are really cheap, so you may as well get one that can do it all. Hobart, Miller and Lincoln, preferably the ones made in USA.