Talking about the different welders. What would be a good unit for someone who has only welded a few times and is looking to get a quality unit. Not looking to get an expensive unit, just something to do some welding "once in a while, when needed". I would like to be able to do metal as thin as body panels on cars, up to maybe 1/4"? I don't want a "stick" welder. Would a tig be better to get than a mig? I don't mind if it takes longer, I am looking for what does a better job and is more forgiving for more of a beginner vs. someone who welds a lot. I have used a mig a few times.

Also, what are "liners" that you guys have replaced?

Thanks