AWESOME!
I'm going to build my first waterblock for FX5900 and I need to know the height of the GPU and the memory chips. This thread has given me a lot of pointers for block design.
Fast response is appreciated but not required.

(I'm still on the design phase so it's a long way to the finish line)
When I get some pics/drawings, I will post 'em up.
Keep up the good work!
EDIT:
Okay, so I have browsed the web all over again and didn't find any info at all. I thought I've read this thread thoroughly, but just a minute ago I proved myself wrong. There it says clearly that the height diff. is 1.6mm. Now I can go back to the drawing board. Finally.