I want to purchase a mig welder to use as a ' hobbyist ' so I don't want to 'over buy' but I want one that will weld up-to 1/4 in. steel. There are umpteen dozens of them on the market and I don't know heads from tails about them. I can arc-weld and do expert oxy-acetalene work ( hvac tech.) so I shouldn't have to much trouble learning one. Looking for info. about volt/amps and other features and not brand names, so sales rep's., please don't.