I'm building a similar size machine, and I went with the xylotex driver, and picked up 4 253oz-in steppers on ebay for about $65 each. I'm using 2 on the x-axis, so I also got the xylotex single axis board as well. It'll be a while before I have time to see how it works out, though. What Woodknack said about xylotex, all true Outstanding support. If you have any questions, just e-mail Jeff and he'll get right back to you. I hooked up my driver the other night, btw, with 1 of the motors and TurboCNC. Worked great, and very cool. Also, check Ebay for Power supplies. I got a 24V 12a supply for $5.
Gerry
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Gerry
Mach3 2010 Screenset
http://home.comcast.net/~cncwoodworker/2010.html
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