cas123

CPU: i5 2400 ~$1500
MB: Asus P8H61 PRO ~$750 (P8H61-M LE/CSM is cheaper but cant find at the website, you might find at local store)
Ram: any 2x 2GB ddr3 v1.5 ~$250
VC: use on-board if you dont game much or HD5770 or GTS 450 $750
Case: CoolerMaster RC-370-KKN1 ~$300
PSU: CoolerMaster RS-460-asaa-d3 ~$470
around 3270HKD(4020HKD with VC)(price from price.com.hk)
+ HDD: WD WD5002AALX 500gb black or any that fit your need/budget.
+ DVD: use old or sony/nec AD-7260s ~$200 (so expensive now, got mine for ~120)