traphole007 :
TJ Hooker :
http://uk.pcpartpicker.com/p/wqjnRB
Or, if you're willing to go a little over your budget: http://uk.pcpartpicker.com/p/P4VR3C
I actually was thinking of a similar build to your second link, im iffy on the ram but I can sort that out myself, I wonder what kind of AMD build would be needed to kind of perform on the same level :/
https://uk.pcpartpicker.com/parts/partlist/
something like this , however would require at least moderate o/c in order to keep up .! well, since practically building from scratch wouldnt suggest amd right now as it is a dead platform and ''Zen'' isnt that far fom now. if you are so eager to do an upgrade , go with intel. @TJ Hooker's suggestions are pretty good. !