[kedelbach]

Think about the size of the gas bottle if you buy a MIG set-up. It sucks running out in the middle of a job...
Also get an extra spool of wire.

I've used my father's MIG on many occasions -
not only for replacing rusted sheet metal or fabricating metal projects, but also for welding nuts on to rounded bolt heads.

I think it cost around $400 about 10 years ago and works flawlessly with a little practice and fiddling with the wire speed and current settings.

Also a decent mask is worth-while. Those electronic auto-dimming ones are nice, but a compfortable, durable flip-up style one is just fine.

Kurt