Hi DMV i have a prototools Heiz S720 really love the machine and did some mods on it too, really nice machine but you may be looking for something with a proper sprung spindle nose to control depth of cut. Have a look at BZT.de too they are really good machines. The controller can be a problem with these machines, particularly driving them from the parallel port, and a great bit of hardware is the UC100 from cnc drive which does a great job! All the best Nick. Dual drive on Y axis is great, i machine aluminium with mine, and if you take the time and skim your scarf board you can get 0.1 mm accuracy over a large area without spindle nose.