Hi All, I am interested in replacing my old sealey 130a mig welder circa mid 90's with a modern multi process machine. I will be doing small engineering and automotive projects. I am quite interested in the Lincoln speedtec 200c but not completely convinced this is a good machine in all aspects. I have never TIG welded aluminium before and this is something I would potentially like the capability to do. Would I be better off buying separate machines for different processes?