Zotac A75-ITX WiFi B-series - Micromart | Aug 2013

This is a Mini-ITX socket FM2 motherboard that takes the new AMD A Series processors, the cheapest of which is about £40. The GPU is part of that chip, so the better APU you buy the quicker the graphics are also.

This is a feature rich design that includes no less than eight USB 3.0 ports, dual Gigabit Ethernet and on board wi-fi

However, the critical expansion feature here is the single PCle x16 slot, which means you can use a discrete video card if your case is big enough to accept that.