Hi Len,
To change out the spindle is pretty easy, it's just time consuming. We'll have the pricing for the 2010 spindle cartridges later tomorrow as we both are away from the office at the moment. We'll keep you posted on pricing. We've also been prototyping a 10,000RPM capable spindle cartridge upgrade kit complete with NSK high speed bearings and should have all the details on that one ironed out shortly.
Cheers,
Phil
Syil North America