This is a very fun desktop, I got it from ewaste after it was upgraded a few years ago.
It originally had a Core 2 duo and an X1950XTX which went into another one of my builds as the best GPU of 2006
I originally put 6 1TB laptop hdds and a server motherboard in it for a zentyal data server, which did not workout.
Now it sits on my shelf ever since I got my Lenovo Thinkserver that replaced it.