As I indicated in my earlier post on the D30, the one thing I was not happy about was the supplied Zoombrowser software - basically, I found this cumbersome (esp. in RAW mode) and very difficult to adapt to my long standing processing - archiving workflow.
Fortunatley, in my D30 researches I came across a product called BreezeBrowser
I downloaded it last night, and really recommend it to anyone who has issues with Zoombrowser - its fast, adapts to your way of working, and can do pretty well anything you might want to do with an image in individual or batch mode.
There is a full version for free with a file number restriction, and the full licence for $35.
For me this software is the dgi cam equivilant of Vuescan for scanners