Probably not the kind of tools you had in mind but ...
Grizzly is running a pretty good sale on MIG welders for the summer. I got the big one. I haven't done a lot of welding with it, but so far it's doing OK. Nice, stable arc. I even got a tolerable weld once when I forgot to turn on the gas.

Good quality gun with heavy, 10-foot cable. Probably a rebranded version of one of the well known brands or comes from the same manufacturer.
Weldfabulous.com seems to have the best price on cylinders as long as your local supply isn't too snooty to fill them.
Harborfreight has a steal of a deal going on a "refurbished" (i.e. repackaged) 110 amp, 230 volt wire feed welder. I use it for flux core welding. Lately I've been doing a lot of major straightening, patching, reinforcing, and rebuilding on the 12 year old Craftsman lawn tractor (probably Yard Machines / MTD) which is literally falling apart. I've used the flux core box for that since it's pretty tolerant of welding on dirty stuff, and it's doing a good job. Drawback is the short, 6-foot cable; kinda cheesy gun, but it's working OK so far. Flux core makes lots of spatter, smoke, and general crud to clean up, but it's convenient.
I haven't fired up the old stick welder for quite a while now that I've started messing with wire feed.
I don't know if Black and Decker still makes the 15-amp Wildcat angle grinder. I got mine about 30 years ago. If they still make it like they used to, it's definitely commercial grade. Heavy too. It'll wear you out.