These are some good resources for the CubeX.
Seems like by now most users use Kisslicer with CubeIt to create the printfiles for the CubeX.
http://www.kisslicer.com/contact.html
Kisslicer is a must have for the CubeX. Get the PRO version. Very affordable and worth it.
There is also a very useful forum:
https://groups.google.com/forum/#!forum/kisslicer-refugee-camp
A newer forum:
http://www.kisslicertalk.com/
See also Cubexupgrade for Tips and Tricks using Kisslicer.
http://www.cubexupgrade.com/
Accessories and Spare Parts and Upgrades:
GRM Products sells a heated printbed, Spare parts and other accessories for the CubeX.
http://www.grmproducts.com/Home_Page.php
CUBEXUPGRADE sells hotends, upgraded electronics and other components for the CubeX.
http://www.cubexupgrade.com/