So, like. I have a perfectly serviceable computer. But! I'm presented with the opportunity to bring from home an old computer that's only collecting dust for right now. It's a 1GHz, 15GB, 256MB RAM system. What kind of cool things could I do with it if I installed Linux on it? This is something I've always wanted to do but I've never really had the chance. Let's say I used it as a server--what kind of applications could I see from that? Or fun projects?