Yes I know, a D2X users informing about 5D samples, the World is upside down... http://www.dpreview.com/articles/canoneos5d/page11.asp
Joke aside, the high ISO shots are impressive, but the DR potentially less so (although it might be a metering problem).
I guess that I might be facing a very difficult dilema in a few months... a 11*14 Tachihara view camera, or a 5D with the 24-105 IS... This of course unless the D200 puts up an impressive enough high iso performance when it is released.
We live in a fascinating (but expensive) World!