Guys, I don't want to hear about how hard it is, and I don't want to hear about a great welding book I should buy. I want to know if it is possible for me to do it, and how much I would need to get started. I have some experience welding with a MIG welder. From the search that I did here, I found that a TIG welder is better for aluminum, but a MIG welder can be used as well. Not wanting to spend the big bucks on a TIG welder, can someone tell me what size MIG I can use to weld what size aluminum plate?