FYI... Detailer's Domain has a pretty good deal on the Griot's Garage DA for $139! Thats about ~$60 bucks cheaper than Griot's sells it for with all those colored pads. Plus Detailer's Domain has a few discount codes that makes it even cheaper!
Griot's Garage 6 inch Random Orbital Polisher Base Kit
http://www.detailersdomain.com/Griot...Kit_p_683.html