Hail to the Sam, baby!
I initially created Sam as a design pitch. What you're seeing is the realtime model rendered in Mental Ray. I used three 1k textures. With all the replaceables, he's at 14k polys.
I'll post some more model shots, hiPoly Renders and so on when I find the time to comp it all together. Hope you guys like him, I even wrote a small story snippet before I designed him that actually explains his prosthetic and the missing finger.
My buddy Holger helped me with the Mental Ray setup.
And the turntables:
Tools used: Maya, ZBrush, Photoshop