plz sugest me a video card under under 2.5k.AGP 8X SLOT IS PRESENT IN THE MOTHERBOARD.I AM NEW TO GRAPHIX CARD.so plz help.My memory is 512 mb ram.2.26ghz celeron d processor.I have one more doubt.On the hardware profile of MY COMPUTER on goint to display adapter there is already a device named VIA/S3G Unichrome IGP.(but there is no cards attached to PCI slots) do i need to uninstall it before installing the new card.I am a non computer professional interested in playing games. so please help me.thanx in advance.