As Flanker says, almost verbatim
At the moment there is no better choice than the i5 2500k. As far as graphics cards go, this may provide some guidance if you’re thinking about the amount of VRAM that may be necessary:
http://www.hardocp.com/article/2011/...o_card_review/
When it comes to CloD, I found the additional memory allowed higher detail settings without a frame rate penalty, but the difference wasn’t huge. More of it certainly doesn’t hurt, though.