Nice conversion! I always thought 40K needed more 'brain in a bot' servitors besides the 'lobotomy in a romper suit' type. Painting's looking good too, particularly the metals.
There is seldom a model that actually looks frightening to me. But with this one there is something about the scull and the overall impression that reminds me of having seen "Terminator" way to early ;-)
Great concept, great execution!
@ misterjustin: I have a (some say unhealthy) obsession with metalics and trying new techniques for them. I have some tutorials for metalics on my blog if you're interested. Well yes, that's another sameless plug by Brother Captain...
@ Yuggoth: I'm so happy to hear that! One of the main reasons I converted and painted that mini is because GW's servitors looked goofy to me and I wanted my servitors frightening with an extra dose of grimdarkness.