Filipinos in Manila, where can I find a Video Card?

I'm looking for a powerful video card, preferably GeForce 8800 and higher, AGP port video card. Where can I buy one? I checked out Gilmore but they're all out of stock. I live in Cubao, is there a store out there in Manila where I could purchase one, all I could see are weaker 5200s and 7200s. Please give me the complete address.