The Primera Signature Z1 seems to be a pretty neat. It is thermal and can do graphics.
http://www.primera.com .
froogle or pricegrabber for prices. The Casios seem to be a bit more problematic. I hesitate to recommend Epson because of their well-known clogging problems and that you have to use printable disks - OTOH, they are general-purpose printers, so you only have to clutter up your workspace with one printer.
. The Primera works well with standard disks like Fuji, TDK, Imation etc. - ones that don't already have printed backs.
. Some of the Canon Pixma models are set up for CD printing in their European versions. IDK why they chose to exclude that feature on the North American models - one would think it would have helped sales here quite a bit. Perhaps Canon is using Europe as a test market and will include the feature in the next rev if it works out there. Some of the necessary parts are already present on the NA models. If you're willing to risk a print head, there is a special thick-media setting that can be accessed from the latest version of the driver and you could attempt a semi-manual feed.

Not recommending, just suggesting...
.b.h.