I would say stop in at one of the Westair locations and see if they have any demo models that they are getting rid of available. The welder technology has progressed in the inverter side of the industry and they are good. All the major brands have a budget line if you're going 120VAC power supply then look towards the Hobart units, fairly bulletproof. On more light industrial the Miller 185 is good. Don't overlook Esab or Lincoln either. I've used them all and they're all quirky in their own ways. For the small projects the Hobarts are more than adequate. If you're going to be doing a lot of 1/4" or thicker regularly then you'll definitely need one of the 208/230 VAC units due to the duty cycle on thicker settings. But, in recommendations on where to get one check the equipment rental stores as they might have something industrial that they are getting ready to take out of the fleet and sell that is perfectly good but they want one that is under warranty from the manufacturer. Yet another long winded suggestion is to check with the welder repair shops for anything they might have lying around that the customer traded in to trade up. As for the saws, cold saws are great, abrasive saws are cheap but effective, buy on basis of your work environment. Personally I've got the Lincoln SP255AC, The Hypertherm 43 plasma, and a cheap old HF abrasive cut off saw. Both the welder and plasma were demo units. Good luck in your search, hope this helps.