In the last year or two there was some HN post about some guys in, IIRC, Minneapolis, that got a rack in a data center and were doing something like this. ISTR their website for the colo was in ASCII art. A few months ago I went looking for it again and couldn't find it. I was tempted to put a machine I have at home over there, but I also have a local place I could see about going into, but just haven't yet. What I really need to do is just buckle down and get my home networking set up so I can run it here using my gigabit fiber, maybe upgrade to 10gig.