Are you thinking of buying new? It's WAY more expensive to do so. How serious are you? Does it matter to buy new? Because I just bought this for like US$265

I'm not saying this is right for you (I'll be using it for running gaming servers and the occasional video rendering) but that's what I'm running. I don't know anything about the above servers, but I figured I'd get in an initial comment just cuz. I'll be back with more research.