That's where I spend all my free time:

That's CNC router / milling machine and control hardware. Dell Precission, 20" Dell screen, G81 keyboard and stock Dell mouse.
What do I do with it? Currently I learn how to use it, doing simple things like engraving wood and laminates, cutting some parts for RC models out of Aluminium and Carbon. Who knows what to do later. I'd like to do keyboard cases but I don't have tools to anodize them. I could do acrylic or PVC ones pretty easily though.