I am not going to FX so soon, and sb-800 is alot smaller, compare to the big and new sb-900. I will still need to borrow friends camera to update the sb-900 firmware.
Therefore, sb-800 !!!
The old, trusty reliable sb-80dx is still a very good flash. It still does D-ttl on my D2h. The flash can be trigger just like the su-4 mode in the sb-800. Great for off camera flash. And also the Sigma flash, with the optical trigger, it does the same as su-4 mode too.
There are some people who ask me, what is the yellow plastic doing on your flash head. It is a colour gel. This colour will balance with most ballroom temperature. Even if you are using the flash for fill in, the gel will give you a nicer skin tone.
The gel is call Lee filters 103. Cost $12, a really big piece. Can share with lots of friends.
For high ISO user, do try this way to diffuse your flash.
