I'm looking to build a gaming desktop in the next 1-3 months and I was wondering which CPU would be the best (not the most expensive to use.) Also I was wondering why the AMD's are cheaper than the Intel's. One source said that the reason is when you have a computer with a quad-core AMD, the CPU will only use the number of cores needed to operate the program and the Intel will use all 4 cores, but I'm not sure about that. Any help would be greatly appreciated! Thx--Eric