I got my Zalman VF1000 and have installed it. Instead of using Zalman's VGA Ram Heatsink I used the Cooling Kit by iandh.

Click image for larger version.  Name: 8800GT iandh Cooling.jpg  Views: 1739  Size: 109.9 KB  ID: 77560

I used a flexible SLI Bridge to connect the cards.
Click image for larger version.  Name: Zalman VF1000 8800GT SLI.jpg  Views: 9287  Size: 118.7 KB  ID: 77561

This was the first time installing SLI and at first I couldn't get it to work. I eventually removed and reinstalled my video driver and that did the trick.

Using Everest here are my load temps:

GPU #1 (w/ Zalman VF1000)
GPU: 43c
GPU Memory: 35c
GPU Ambient: 36

GPU #2 (EVGA 8800GT Stock)
GPU: 66c
GPU Memory: 58c
GPU Ambient: 54c

As soon as I get my tax refund I'll get another iandh cooling kit and Zalman VF1000.