I have a 1.5-gen TPC (HP TC4200), and I'm fairly happy with it overall, aside from the complete ass of a GPU (intel). ZB gets pretty chuggy, though, past, say, half a million quads. Been pretty happy working in Silo, though, on the machine, and the various 2D apps (PS, ArtRage, Painter, Sketchbook Pro) work great.…