I finally broke down and bought one: an HTP Invertig 201 AC/DC. It's a pretty decent unit; maximum 30A power draw (which meant an easy wiring run for it), controllable anywhere from 4A to 200, both AC and DC modes, some nifty programmable modes for production work (not that I'll need them), good duty cycles, and water cooling. The whole setup with helmet and consumables was pretty pricy, but hopefully I'll get some value out of it over the coming year with all the fabrication work I need to do on both of our project cars. Jeff over at HTP also threw in a free tig welding class, which both Erica and I will be attending this Saturday (and Albert was nice enough to give Kris and I a quick lesson a little while ago), so we shouldn't electrocute ourselves right off the bat. I still need to find a surface for a welding table, and source a bottle of Argon gas, but then we're ready to go. Whee, new toys...er...I mean, tools. ;-)