I have a century 125GL and its a decent little 110v rig. 4 heat settings and a variable wire rate plus a tweeco wand (type of hand thingy). The best investment i made was in an auto-darkening helmet because the wire is always hot on this welder so if you touch it, it will spark. When I first started welding it was hard to flip down the mask and get my hand on the bit I was going to weld accurately. With the auto-darkening helmet (i have the battery model that switches in 1/250,000 of sec) its easy. Just drop the wire where you are going to weld and have at it. As for what you can do with a little rig, I have welded together body bits for my 59, plus the entire flatbed (w home-made toolbox) you see in my link. That flat bed made out of 6" structural rails with 2x2 3/16" stringers and 1/4 plate on back/sides has carried over 3000 lbs of scrap many times. I am currently welding together a 47 cj2a 'heep' with it and use a copper spoon to backup the sheet metal to avoid warps and burn-throughs. I would like to have an HTP dual power one with stitch welding, etc, but since the century gets the job done, well, I'll keep with it. The little Miller's don't have hot wire until you pull the trigger, so they are easier, drop wire, drop visor, then pull the trigger.
And, btw, I have never used gas, would be cleaner, but flux core works well and you can do it if its windy without loosing the sheilding gas.
I think its my favorite tool. But after sealing like 40-50 various drill holes on the heep, well, I's gettin a bit ty-red....
