Just a few notes....

Silverstone ST56F 560W PSU ... Can get for less than RM350

LG 20x DVDRW SATA - RM80 ... For the same price or less, can go for ASUS 20X DVDRW

Gainward 9800GT Cool Ice 512 DDR3 - RM560 ... Alternatively can go for Palit or Galaxy 9800GT for around RM450 only

Altec Lansing BXR1121 (2.1) - RM120 ... Alternatively can go for Edifier M1310 (2.1) for around RM110 or less..

Anyway, the money saved you can change to a nice casing like CoolerMaster Elite 330 (around RM130).