Okay, so you THINK that it would cost you less if you went with that apu :/ bare in mind that these things cost 95-100 Pounds and FM2 socket motherboards cost about 45-50.. That's 150 for the motherboard and cpu itself. I see no reason as to why to get the the a-10. The only reason it beats the competition is because of its integrated graphics which only provides decent speed if paired up with 1866MHz of ram (Sorry to bust your bubble), The integrated gpu takes all its power from the ram mind you so you'll have to get 1866Mhz of ram which is about 30 pounds. Thats 180 just for the motherboard bundle :/ .. Heres my suggestion
http://www.novatech.co.uk/products/motherboardbundles/mbb-16104g.html
Get this bundle, Do not judge it by the name just cause its celeron doesn't mean its not powerful.. Its as fast as the Core 2 Duo series which is still pretty damn good when it comes to games (Im using a e2140 overclocked) or if you can afford it get the G2120 Bundle from the same website.. Pair it up with a HD6670 and you have a better rig for the same if not less price. I wouldn't even get the HD6670, I would just go to CEX and get me a used GPU for 30 quid (I got a 9600GSO for 15 Quid haha which im using in my rig) .. Get a Good PSU, Tower and DVD-ROM from CCLONLINE (cheaper on that site but they dont stock ivy bridge celerons just yet) and you're good to go. A better machine.. for the same if not less price.