Looking for a GeForce 6600 board for your SLI setup? Or maybe you just want a good mainstream card with Shader Model 3.0 support? NVIDIA has taken the by storm with their GeForce 6600 cards, available in AGP and PCI Express flavours. But if you're looking to get some SLI action, PCI Express is the only way to go! We test four cards in this round up: the ASUS EN6600 GT TD 128, the Chaintech SE6600G 128, the Gigabyte 6600GT and the MSI NX6600 VTD128R.