The 3 8GB Extreme IV cards have arrived. 
I mentioned this in a previous blog, but it is very important to have these UMDA cards when shooting with the D3, as seen in this article on e-Photographia.com there are big differences he does lots of testing so be sure to read up!
Nikon D3 - Cl (RAW + JPEG) - 20 seconds of shutter actuation
Card time to buffer full shots MB buffer flush
ATP Pro Max II 7 s 76 350 88.1 s
SanDisk Extreme IV 15 s 97 447 100.4 s
SanDisk Extreme III 5 s 54 249 69.1 s
Apacer III pro 150X 5 s 59 272 73.3 s