Here are few kits that look pretty good:

http://autogeek.net/optimum-kit.html

or

I would JUMP on this kit asap because it has truly everything good:
http://autogeek.net/meguiars-da-foam-pad-kit.html

But, I do feel the need for a FLEX machine, because it does a faster job:
http://autogeek.net/flex-orbital-polisher.html

If money is no object, this is the kit to get...simply the best in my opinion:
http://autogeek.net/menzerna-flex-xc...w-car-kit.html