i have had the same desktop pc for three years now. it has a 1.7ghz intel celeron processor, i have already installed a bigger hard drive,memory, and graphics card . so is it just as easy to replace the cpu with a bigger/better, one? like a 3ghz one . the reason for this question is, as a game player there is a new game called oblivion which will not even run on a 1.7ghz processor ,and i am a tight git and do not want to have to buy a new pc. 
