Blimey,60 watts ,that would take some power,best advice would be to ask one of the more experienced members to see if they can make something,iv'e seen some small drivers on ebay that can power 5amps+, many drivers all independently wired to the same diode would boost current though,but as to how many you would need that would depend on current requirements,type in "high current laser driver" into ebay,there's a varied selection of drivers.hope this helps 
