A Cutmate 375 works well for me. It's even the same color. It will quality cut 3/16", and sever cut 1/2". You just need to make sure you have a very dry clean source of air. You will burn through tips very quickly if you have moisture in your air. Not too mention that it reduces...
I have a Dynasty 200DX and it does everything that it claims. Very adjustable, smooth arc, positive starts and portable to boot. BTW, I would spend the extra money and get the DX over the SD. If you're doing light gage stuff, the pulsing capabilities are good to have. Although it can run on...