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.