Kit built servo drivers?

Hi Folks,

I currently have the Hobby CNC board for my stepper driven machine. I
like building electronics kits and such. I am collecting up some
servos for my next machine so I am looking for servo drivers.

If you have any suggestions to good valued servo drives please let me
know. While I would prefer to go with a kit of some sort, I am not
opposed to buying a completed servo drive.

Thanks

Chris