woa, OPPS... sorry man, i'm completely misread that. my fault sorry, i'll delete it.
I thought he ment because i need to do alot of body work and i very extreamly little experiance and all everyone (minus a few people) is telling me is that i shuldn't do it, even though i have no choice in the matter. anyway, sorry man.
as for the welder mig is the best to start out with, just make sure to practice a lot though. as for the duty cycle you want a high %, generally 80-90% is the highest u'll find, but 60-70% is great. there are a lot of "cheaper"15-25% cycle too, there good but you can only weld for about 2 min out of 10min! i dunno, thats just not enough for me. anyway good luck man!