I would use this board
http://www.xylotex.com/#3axis
You would need to keep the current under 2.5 amps, but the is a current pot to do just that on the board. I would use a 24 volt or more powersupply.
I am not sure of the torque of those motors but I am sure they are 150 oz+
They will be perfect for a home made router. How large a machine are you planning?
Eric