I was intentionally going for the small DOF with these shots since I just got the 105mm f2.8 lens. I am using a tripod & remote shutter release. The ISO was set at auto so I will change that and get it lower to help remove some of the noise. Also, the next set I do I will play with the f stop between 11 - 20 and try and get a feel for the DOF. The D200 has a program mode, aperture priority, shutter priority, and full manual.
I'll keep playing and post good shots as I get them!
Cheers and thanks for the advice!
Scott