Not sure if this helps, i just put together a budget rigg,
80$ asus p8z77m
50-60$ 500~tt psu
core i53570k 230$
1x4 generic ram-22$[until i can upgrade]
had an old laptop 500gb hdrive, but they are cheap anyways.
at least with this gear, can use hd4000 for games on low res, and have options to get betr gpu etc later. it was bit over 400$= maybe 200-250pounds?
found an old comp on hard rubbish and theres my case lol!
Leaves a bit for monitor and other periphs, and has the basis for a quite powerful machine when more funds come .i nearly went amd apu tho, if your keeping it for a few years, then thats why i went this way.
his masters voice
Illuminous Epanoia Technocrati