Welding Tips and Tricks

Hey guy's

My old Airco 300 square wave quit on me yesterday and i'm going to buy a new machine and i would like to hear some opinions,what would you buy,Miller,Lincoln or brand x and why,most of my work is aluminum and magnesium,help me decide..

Thanks Dean

I Think that Jody has it pretty well summed up with it all boils down too customer support.Like he says any machine is gonna suck kumera sooner or later , And its the support that then really sorts the Men from the Boys.
Good Luck
George