I'm poor, in college, and building computer. Looking for optimal performance, value, and longevity on a minimal budget. I've looked at nearly every thread here, but still can't decide. Take a 1.6A and try to overclock to 2.2~2.4, where high-end components would drain power, money, and wear out more, or get an AMD XP which runs hotter and won't overclock as high. What's the true performance differential, regardless of impressive benchmarking results? Looking for an experienced point of view.