When you build your own 3D printer you can put the electronics just about anywhere. I chose a RAMPS 1.4 enclosure off of Thingiverse and then modified the sides to my liking.
I then added a 50mm cooling fan, power indicator and switch, and knobs and switches to control lighting and three fans.
You can download the STL files here: http://www.thingiverse.com/thing:258797