Are there any devices similar to the Arbortech Contour Sander for sanding complex-but smooth contoured surfaces??? (Like a bowl or chair?)

Another thread mentioned Sand-O-Flex, but doesn't that leave directional lines?

Arbortech's looks like a great product, but shipping to the USA is exremely high and the cost is prohibitive from ordering replacement pads and paper. I'm trying to find out if they have US distribution and will repost...

Also, does anyone know what grits are necessary for sanding after milling with a ShopBot 0.25" ball nose bit? (I haven't used a ShopBot yet, but am looking to buy one soon).