I've not finished the fine details on him, but he's good enough to show...
I've departed from the traditional 'boltgun' scheme and gone for a very light grey (pure space wolves grey) and blue washes. I've also tried a shading technique mentioned to me by a bloke at the local GW store...
Undercoat black
Spray undercoat skull white from the top of the model to create a lighting effect on the model.
When you paint over the top, this gives you a guide to the shading and emphasises the lighting effect on the model (at least in theory!).
Here's the undercoated model...
Here's the model with basecoats, washes and some highlights... (painted to represent the light from above)
The geller field switching on ready for teleport (or a dodgy camera in need of replacement!)
Cheers Laney