Mathematical formulas are available to calculate depth of field, but before I spend $2000 on a D100, I was hoping someone would be able to post sample photographs comparing 35mm and the D100, so I can see for myself instead of getting just a "rough" idea or some numbers.
The D100 sensor is about the same size as APS film, so I was thinking the difference in bokeh between 35mm and the D100 may be similar to the difference between 35mm and APS. To this end, someone experienced with an APS SLR camera may also be able to offer some insight.
I have found bokeh rendering to be virtually the same from film to my D100 or D1. I noticed long ago that my 400mm f/2.8 has a distinctly bad bokeh when used with the TC-20E converter. The out-of-focus highlights look exactly the same on film or either of my D-cameras.
To the original poster (AuthenticJT) - I think crabtree has just shown that the D100 does very nicely for its out of focus rendition. Great photo!
The article you quoted has nothing to do with the D100 since it is for for P&S digitals, not D-SLRs. Sure, the imaging sensor is smaller than 35 film, but that is not the issue.
Due to the smaller size sensor, you need to move back from a subject for a given focal lenght to get the same framing. This is the only thing which will affect the out of focus rendition on digital cameras. Because the lens is focussed a little closer to infinity, there will be more depth of field and a less blury background.