AMD And Intel are comparable brands with lines of processors which have there own specialty of performance. While AMD processors are generally having more physical cores and physical threads, are good in multi tasking and also the upcoming release of DX12 is going to improve multicore usage in games. So AMD will have a better advantage there in the future. Intel processors have (at least i3, i5 and earlier i7) 4 Physical Cores and 4 physical threads. But Intel uses a technique called Hyper threading to create 4 virtual threads which could act as if there are 4 more cores in the CPU. This helps in multitasking. But DX12 will only enhance physical core usage.
AMD uses a little more power than intel. Well, let me say this, when it comes to Intel Vs AMD, there is a little bit of RED & BLUE war going on in many forums with people fighting it over which is better. But really, each of these have there own characteristics which should not be compared to each other.
Most importantly, AMD has the cost/Performance ratio. I am not saying Intel does'nt. But most of its processors are priced higher.
If gaming is the primary usage, Intel would do just as good. But when it comes to games as of now, GPU is the boss.
Even if you buy a high end Intel processor and pair it with a mid range graphic card, it will not be as good as a Mid end CPU with a high end GPU together.
The power supply choice was more of an experience thing. I have more experience with Antec PSUs. They have all Japanese good quality capacitors and are known for there longevity and sturdiness along with high efficiency.
The case I chose based on aesthetics along with space, future upgradability for internal components as well as plenty of air flow.
Well lets hope this thread does not become an Intel VS AMD battle field.
Just to make sure that does not happen, I will also give an intel parts list for you. Just trying out one now.