OK
Let me set you up okay?

Processor: Core2duo E6800 ~ RM 3,000?
MotherBoard: P5ND2-SLI Deluxe ~ RM 880.
RAM: Corsair XMS2 8500 DDR2 (1x2GB) ~ RM 2,050 <= The more, the better LOL, so add 4 Gigs if u want. 4Gigs ~ RM 4,100.
HardDisk: 2x 36Gig Raptor(Raid 0) (Fast video editing etc.. perhaps large map decreased loading time) ~ RM 760.
HardDisk: Caviar (360Gig) ( To store all our games!!!) ~ RM 360.
Graphics Card: Geforce XFX 7950 (Get the 570 Mhz one!) Get SLI, so you have two, 7950 = 4x GPU ~ RM 5,000.
SoundCard = X-Fi ElitePro Extreme ~ RM 960.
PowerSupply(PSU) = PC&C 1Kw (LOL get a 1Kw PSU to power the stuff above

) ~ RM1,600
Casing: Dont forget a casing to put all ur stuff =) Get a good one too~ RM 1,000.
Dont forget dvd-rw/cd-rw etc, and of course the mouse and keyboard.
Throw in a liquid cooling system if you're not familliar with phase change.
Bigger IS better. So, playing on a 30" monitor is the ownzorrrrrrr "omg wan this is so big wan" ~ Rm 8,000+
Ok I'll add it up for u okay
Roughly RM 27,710... Still cheaper than Dell's XPS lol USD$10,000.
Enjoy.