I believe those are the same motors that Jeff at Xylotex sells. They are 116 oz/in steppers. I have some on a 14x24x5 home made router using 5/16-18 all thread screws with drawer slides for rails. I get about 50 ipm rapids with them. I also tried them on another machine (12x24x5) I have with 1/2"-10 acme screws with Thompson linear rods and bearings. They would get about 90 ipm rapids on it and cut pretty good too. Mine are wired bipolar parallel (which Jeff recommends with these motors) and work really well for their size. Of course a lot will depend on how much friction your machine has, how they are wired (parallel, series) and power supply voltage.
I don't know about the driver you are talking about and whether or not it has a current adjustment on the board or if you have to use external resistors to limit the current. I suggest that you read the setup papers on the Xylotex web site for setting the current if you are using the Xylotex driver. There was a discussion on this very subject today but I can't locate it at the moment. When I find it I will get you the link.
As for the voltage. With the Xylotex driver, you should limit it to 30V. The board is good for a MAX of 35V but you need some buffer in there for back EMF. The motors should be ok even above the 30V using the board you are indicating. I believe the motors are about 3 or 3.5 volts and you should be able to run them at approx 20 times that voltage without harm using a bipolar chopper drive. I believe the 65 volt rating is a max sort of like just before self destruction occurs. They shoudl run good at 30 - 40 volts as long as you limit the current to what is recommended according to how you have them wired (parallel or series). If I remember what I read today, you should be able to run them bipolar parallel at 2.5 amps without problems. For series, 1.75 amps.
I hope this helps and if I gave some bad information, somebody please correct me. I't still pretty new to this also.