Jim and Peggysue,
Thanks for the positive feedback. All these were taken with my usual macro setup: Nikon D200 body, Sigma 105mm macro lens, Nikon SB800 flash used off camera. Both the camera and flash were hand held. The SB800 iTTL mode gives perfect exposure almost all the time.
For more details you can get all the EXIF data with the IEXIF viewer from Opanda. If you have it you can just right click on the pics and display the metadata.
Thanks again,
Geo