Which machine to look for?

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I have been given the opportunity to have a place to use a big 3 phase tig machine. I have never had this capability before so never considered it even though I have wanted one for a while. I would like an AC/DC machine with some decent amps behind it but am wondering what machine to look for. Used is the only way I can afford to do this and it will most likely end up being a transformer based machine. Here in NZ you mostly see Millers for sale Syncrowaves and Dial-Arcs, now and then big lincolns will come up for sale as well as the odd hobart and esab. I would like something that is going to be a sound machine that won't breakdown. While I know I will be buying used it would be nice to know that I am getting a machine that still has some factory support parts wise. What should I look for and what machines are you guys using and what welding capabilities are you getting out of your machines and how thick are you welding?There are quite a few options in the used market down here with various brands, models, and sizes and just want an idea of what others are using. Most shops that do alot of tig welding seem to have mostly millers at least the ones I have seen.
Reply:Anyone?
Reply:I can't say for using 3 phase on a tig machine, but those brands are well established. You should be ok if you find one in good working order.City of L.A. Structural; Manual & Semi-Automatic;"Surely there is a mine for silver, and a place where gold is refined. Iron is taken from the earth, and copper is smelted from ore."Job 28:1,2Lincoln, Miller, Victor & ISV BibleDanny