Acer Revo M1601 Nettop, N3050 / 2GB / 32GB, £99.98.
Nice little box for the price, OS not included so put Linux or a cheap Windows licence on it. Far more capable than a Pi for not a lot more money once you get all the bits.
RAM upgradable, disk not, but can take SD cards.
HDMI and Displayport, 3 USB 3.0 ports, Ethernet and wireless on board.
Added bonus, (wired) keyboard and mouse included!