As of now I have a intel duo 1.8 ghz CPU which is really sucky ><. Any who I was planning on getting a i5 2500k or a i72600k, I was wondering which one i should get. Is the hyper threading on the i7 really worth it? I mostly play games, such as wow, hon, sc2, bf3, etc.. Also I was wondering what motherboard should I get for either one, and what heat sink to get because I want to over clock which ever one I get...4.5-5 ghz at the most