Hallo, I have an pentium4 machine, 2.8Ghz, 512Ram. All i have on my motherboard is 3pci slots. I am trying to get a graphics card.I am thinking about fx5200, fx5500 or fx5700. Will it run most of the games properly? Or could I add an AGP or PCI express slot to my motherboard? Somebody told my that it is just wasting of money to buy a graphics for PCI slot, because they are too slow-Is it true? I couldnt actually find an PCI fx5500, neither the PCI fx 5700, do they exist? All i found for the PCI slot was the fx5200. Please help.