I have been making brushless motors for RC airplanes / helicopters. I started out modifying CDROM motors....save yourself the disappointment and wind your own. Your best bet is to rewind it with fewer turns and thicker wire in a wye configuration for medium (15 - 20KRPM) and high torque. For under $20 there are brushless kits being sold now....they come with super strong rare earth magnets, spools of enamel wire and dual sealed bearings.

I spent a while getting a PIC to work for the electronic commutation. One word of advice........ASSEMBLY CODE!!!!!! PBPro...was a futile attempt for me, never worked well in this application. Especially when you are dealing with 10,000RPM with variable speed.

Best regards,
Nick