We need to establish what we are working with here; Are we talking 25 gauge material (basically recycled beer cans and not worth 2cents) and should never be used.... , 20 gauge EQ"s (basically good for non structural interior walls to hang drywall) I would use tin snips or a good chop saw with a metal blade; fasteners- sharp point framing and drywall screws. 20 gauge structural where your walls may carry a load (kitchen cabinets, etc) then same tin snips or saw, fasteners- self tapping . 16 gauge is for heavy structural, second floor, outside walls with a veneer surface, floor joist, etc. Same chop saw or a portable band saw works well too. The best tool you will need is an impact driver and self tapping screws. The reason metal framing is so fast is everything needed can be carried in a tool belt, for the most part. Oh... don't forget magnetic levels.