hello everybody! this is my first post so go easy on me, i recently took up welding and i was wondering if anybody can help me out on choosing a good miller welder that can weld, aluminum, stainless, and steel, for approx $900 used, i've heard that the millermatic 130 xp does a great job, i need some good solid advice on this before i buy a welder, any help would be greatly appreciated!! -thanks