I'm using a Thermal Dynamics Cutmaster at work.. I know it's the one with the 40amp max supply, but not sure which model.. I believe it is the Model 51... Absolutely love it..

We bought it at a welding supply house.. I don't think you'd have any problems finding consumables on this unit.

Have used it for several years on some pretty big projects and the torch head shows no signs of wear.. I've cut 1/2" thick steel with this unit.