Here is a picture of my setup. Bought the variable speed grinder at Lowe's hardware, bout $65 I think. Bought the wheels from my local Woodcraft store. You can check woodcraft.com I think to see if there is a location close to you. The wheels are called "Razor Sharp Edgemaking". Think they were around $50 for everything. So I have around $115 in my setup.

[Linked Image from i304.photobucket.com]