I wanted to elaborate on my earlier post.
I have a filament extrusion 3D printer. I print using ABS plastic. It is a commercially available printer. Not the same as what Shapeways uses. As stated earlier the Shapeways printers are capable of higher resolution than what I can do, but if you are willing to put the time in and do the post processing, the parts come out really nice. Shapeways has printers capable of printing in full color too. I have only one color capability.
I just thought I would try to help out if someone needed it.
I'm not a business, just a guy with a lot of fun toys, one of which is a 3D printer.
Chris