Money Making Server Ideas

I bought a server recent for a small money making idea but the plan fell through. Now I'm trying to figure out another way to use it. It is a HP DL585 G5 server with 128 gigs of ram. I can create multiple VMs if an idea requires them. I'm also thinking of giving a reward for best idea depending the value of the idea.

Challenge: I am looking for minimal day to day interaction. I can remote in and fix issues as they come along but I'd prefer not to watch the server all day. The server would also cost about $1-2 a day in operating cost (electricity). I am located in the United States.

Let me know if there is any other information I can provide.