i am actually building one on sat kind of a modiefied version of the bucket using an old vaccuum motor if you dont find one to buy pm on monday and i will let you know how it turned out and what i did to build it.
The 5 gallon bucket cleaner works perfect. I use 2 squirts of Windex and run it about 2-3 minutes. perfect and shiney every time. Invested about $32 and 1/2 time to build it. Just watch the video that was linked above.