Depends on what you have available for power, and how much you're looking to spend. You could do 90% plus of the projects on a Jeep with a quality 110V MIG, and it's much easier to find a place to plug it in. Having a 220V machine is nice, but you'll rarely NEED it. I have a Hobart Handler 185 I got from tractor supply that I like. I would have almost preferred I bought a big Miller 110V machine, if only for the better adjustability, but I don't have any complaints about the Hobart. I think it's the Miller 211 that can be used as either 110 or 220V, but that's a $1200 if I remember correctly. My vote goes to a used Miller 110V unit, in fact squashman might actually be willing to sell his.