Here is a model I created in Zbrush following a tutorial by Joseph Drust on Pixologic's website. First time hard surface modelling in Zbrush, which can be quite difficult at times. Overall I learned a lot of techniques and its a great tutorial for anyone willing to learn the program.
Here is a turntable of the model out of Zbrush.
The final render out of Maya, with lights and volumetric scattering.
A screen capture of the model within Zbrush.