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.
Kisslicer is a must have for the CubeX. Get the PRO version. Very affordable and worth it.
There is also a very useful forum:
A newer forum:
See also Cubexupgrade for Tips and Tricks using Kisslicer.
Accessories and Spare Parts and Upgrades:
GRM Products sells a heated printbed, Spare parts and other accessories for the CubeX.
CUBEXUPGRADE sells hotends, upgraded electronics and other components for the CubeX.