I'm from the Philippines as well, planning to build almost the same gaming rig.
For a tight budget, I wouldn't be choosing the:
MSI 990FXA-GD65 Xfire/ddr3
AsRock 990FX Extreme 3
as these are Xfire/SLI boards, and if your not planning to Xfire, your wasting money.
by comparison between:
MSI 880GMS-E41 FX VSL
AsRock 960GM-VGS3 FX VS/GL
AsRock N68C-GS FX VSL/combo
Asus M5A78L-M LX/3 760G/VSL/ddr3
the AsRock 960GM-VGS3 FX VS/GL is the best buy budget wise as it Supports OC RAM 1600(OC)/1866(OC).
MSI 880GMS-E41 FX VSL, does not support OC RAMs
AsRock N68C-GS FX VSL/combo is a combo DDR2 and DDR3 board, that has system limitations for RAM
Asus M5A78L-M LX/3 760G/VSL/ddr3 short life span of mobo, based on experience.
My Setup:
AMD FX-6300 Black Ed
AsRock 960GM-VGS3 FX VS/GL
Inno3d GTX 660 Ti 2GB 192Bit Herculez 2000
RipjawsX 8GB 1600(OC) F3-12800CL10S-8GBXL
FSP Hexa 600watts PSU
Seagate Barracuda 500GB 7200RPM HDD>>> 2nd Hand, My only pain point.
all in all around $665 USD or 29,000 Php