[MikeK]

Yikes! What a question. I'm with Pete on this one. Check out the local JC for an evening class where you can learn about alloys, materials, and what is happening inside the weld itself. Just being able to lay down a pretty bead doesn't cut it. Do you already have real schooling in gas and GMAW (MIG)? Hopefully you didn't put the cart before the horse. The control options on TIG welders are overwhelming. Whatever you have, there is always something better that you want, like soft start, wave choppers, pulse control, trigger stuff, foot controls, lithium pills for your sanity...