I decided to setup my own full node using a mini PC found on aliexpress for 130$. The mini PC comes with a N3150 Celeron quad core processor known for its low consumption (12w at the wall). I added 8gb of unused RAM and a 500gb HDD.
Setup is simple, i recommend to all Bitcoin enthusiasts to run such a device. This mini PC has no fan, totally quiet, its installed in the bedroom.
Here are some pictures and stats! http://imgur.com/a/jmHCL