Im gonna buy one of these, they are dc only so no aluminum, but it's a plasma arc tig combo and is 110/220 voltage which is nice. And it has pretty good reviews. It most certainly isn't a professional rig but for beginners and hobbiest like myself it should be a good learning tool. After Christmas im gonna save up some money and buy it.
Plasma Cutter Tig Welder CT520 TIG MMA 3 In 1 Non-Touch Pilot Arc Torch 110/220V | eBay