CPU: Intel Core i5 2500K (box) or I7, 1300- 1500. Forget it, it's easy to count, probably.
Motherboard: H6 1 or H67 motherboards such as Gigabyte, ASUS or MSI, depending on the CPU. Two references are recommended: ASUS p8h67-m or MSI P67A-C43 B3 880-900 or so.
Memory: 4G 1333, your favorite brand, but KINGSTO has many fakes. It's about 130- 150.
Hard disk: The speed seems to be wrong. Do you have one with a speed of 7400 rpm? 1TB is either Seagate or Western Digital. The bigger the cache, the better. 64 is better than 32 and 16. 500-600 is enough. Recommended: western digital 1t 64m black disk around 530.
Graphics card: n card: Zhong Ying GTX560TI Frost wyrm, 1570 or Gigabyte 560OC 1G 1599, with one card, HD5970 (low is low. Personally don't like cards)
CD-ROM drive: Burner: Pioneer 2 19CHV 150 or self-selected, it is recommended not to exceed 300.
Monitor: AOC or other, 22 widescreen, about 1000, high or low. Or 27, 1300- 1500, probably.
Chassis power supply: Ma Xian A3 or AOC, power supply: 400W, Hangjia or Great Wall or Quanhan. About 500-700 together.
Mouse and keyboard: if you don't send it, the requirements are not high. Just take a set of Shuangfeiyan or Guoyu or upstart or Logitech and feel good about yourself. The budget is 100-200.
Headphones: sending