I'm reaching my mid-life crisis andd have sketched some plans for a 25.3B car. It's along term thing and I've been looking at buying a Tig - new or used and I'm not sure what to do. I will be taking a local supplier's weekend course on Tig wedling as I've done very, very little with it (like played with one twice years ago - it was - less than successful...lol). I have arc and mig welded - I'm pretty proficient with a Mig. So - for a hobbyist working with chromoly, some aluminum and stainless work - what do you guys like (or dislike)? I have a Miller Mig - and I'm considering (as a new purchase) the Miller 907627. Your thoughts?