Due to the many mails:

For the 8800 GT we will offer a cooler this month. If everything runs well, then this will be deliverable within approx. 3 weeks.

As information:

The aquagrafx 6800 LE fits from the position of the RAMs and the GPU on the card. However, merely the drillings around the GPU match. Moreover, the voltage regulators must be provided with a cooling.

The aquagrafx 7800 does not fit because the voltage regulator area is completely differently.