I have a stack of about 10 older dual xeon based supermicro 1u machines with 512gb of ram....if you are in the oregon area you can have any number of them for free! infini-ram makes life easier when dealing with OSM data.

Oh man, that's sweet! Thank you. I would be at your door by now but I'm located 8000 km away from Oregon :D I just received a tiny M920Q, and 64 GB of RAM should arrive tomorrow. I'll have to make do with it for now :D