組個電腦好過年!

Intel Core i5-2400(3.1G, 6M Cache, LGA 1155, with HD-2000 Graphics) CPU Box(盒裝)

AsRock P67 Pro, DDR3, LGA 1155, SATA-3 6Gb/s, ATX M/B [B3 Stepping]
Samsung DDR-3 1333Mhz 4G RAM x 2(原裝, Microworks)
WD Caviar Blue 5000AAKX 500GB SATA-3/16MB HDD
RunCore 120GB Pro V RCP-V-T251B-MC 2.5" SATA-3 6.0Gb/s SSD
MSI HD6970 Lightning w/HDMI+DVIx2+MiniDPx2 PCI-E 2GB-GDDR5
AcBel PCA018 i-Power M85H 750W 80Plus Bronze --- HKD$670
Cooler Master 212 EVO



Intel Core i5-2400(3.1G, 6M Cache, LGA 1155, with HD-2000 Graphics) CPU Box(盒裝)
主機板:請推薦
RAM:請推薦
MSI HD6970 Lightning w/HDMI+DVIx2+MiniDPx2 PCI-E 2GB-GDDR5
Hitachi HDS721010DLE630 1TB SATA-3/32MB HDD
AcBel PCA018 i-Power M85H 750W 80Plus Bronze
Cooler Master Hyper 212 EVO(RR-212E-20PK-R1) CPU FAN


第一項是我朋友幫我用組的
第二項是我參考朋友後自己用的,主機板跟RAM是不是有其他選擇
請各會大大幫忙看一下,要玩遊戲的,價格3萬
POWER怎樣算