[朋友機]Budget 3.5K

佢多數上網﹝玩下flash game &上網睇片﹞&打機﹝L4D、The Sim 3 & online game﹞
佢唔會O.C,特別要求係要有640GB HDD &最好有4GB RAM
Budget方便可以over $200 ~ $300

我幫佢揀嘅list↓
AMD Athlon II X2 ADX240OCGQ 240 CPU [AM3] BOX 盒裝 [低電壓] HK$ 455.00
MSI 770T-C45 AMD 770 M/B HK$ 465.00
Corsair XMS2 TWIN2X4096-6400C5 DDR2 800 4G Kit (2Gx2) HK$ 465.00
Sapphire藍寶石 HD4850 HDMI PCI-E 512MB HK$ 799.00
Pioneer DVR-S18LBK 22X DVD Writer /SATA/黑色/盒裝 HK$ 210.00
WD 640GB 6401AALS SATA II/32MB HDD HK$ 495.00
CORSAIR PS-CX400 CMPSU-400CXUK 400W 80+ 火牛 HK$ 390.00
COOLER MASTER CA-RC335KK Elite 335 ATX Case 全黑色 HK$ 280.00

以上list有冇問題?同埋有冇更好嘅建議?
其實砌intel會唔會好啲?thx大家先~