ignore everything they are telling you. but a 1-1.5 hp baldor motor. (the expensive part) 2 pillow blocks, a shaft that will fit the pillow bocks, a chuck, and a set of pulley wheels. you can make your own uber buffing machine. plus grinder. and you'll be able to set up mdf wheels, or leather, or cotton, or whatever you want. and that kind of hp should be plenty. i used to have a diagram of how to build it, but youll figure it out. its pretty simple.
otherwise grizzly sells one thats not too bad. i mean, its a grizzley, but you shouldnt care as long as it works. not like youre doing commercial work with it.