2.53 GHz P4
1 GB RAM (waiting for another 512MB)
2x 80 GB RAID (striped)
Quadro 4 750 XGL

...can't complain really =)

that's the 3D Box, then there's a 1.4GHz Renderslave and an old P3 800 for web, office and stuff plus a Notebook currently occupied by my girlfriend : )