[VINMAN]

The biggest problem I've seen with the cheaper wire feed welders , is that they dont feed smoothly. That makes it very hard to get a smooth clean bead. I have a Miller Maxstar 200 stick/tig welder its a small portable unit. Its awsome, cost around $1200. Plus I have a few different mig setups. I have one old Craftsman mig that I've had for about 12 yrs I think I paid about $300 for it back then. I use it constantly it hasnt let me down yet.
If that $300 mig is in good shape id go for it. its a good setup to start out with. The bottles alone will cost you close to a buck a piece if you buy them. Get some argon/co/2 mix and some aluminum wire and practice, practice, practice!