A netbook. Something with excellent battery life. Something with an Atom processor. Smaller is better. Higher resolution screen is better. The MSI Wind is the leading candidate (with a 6 or 9 cell battery). A GPS device for my camera.  Something reasonably priced like a Geomet’r GNC-35. At 150, it is a steal. A 1.4 Kenko teleconverter. For the 300 2.8. [aquired for about 100 used from Map Camera]

Nikon K ring set. Or some extention tubes.

Nikon macro stuff. (coupling ring, reversing attachment thing, filter mount for other end of lens.)