Here you can see the 20cm fan in the top of the case, the 12cm Noctua fan on the heatsink and the 12cm fan on the back of the case. The card under the heatsink is the Palit GTX275. Just in front of the heatsink fan you can see the RAM modules.
In this shot you can see the end of the graphics card with the PCIe power connectors, the drive bays and on the front of the case another 20cm fan. Down the bottom an extra 14cm fan and at the back the Seasonic power supply.
This is another shot showing the fan at the top of the case and you can see the fans on the GTX275.