Another suggestion- Sell the 55-200mm & buy the Nikon 70-300mm VRII full frame- for less than $600. A very good lens & you will be ready for that Full Frame Camera when the urge occurs.
Have been using N Photo for 2+ yrs and find it provides a diverse range of subjects & products beyond Nikon. Suggest you pick up a copy at a book store & decide for your self.
I agree the Nikon 70-300m VR II the latest version is a good lens that comes closet to the more $1000 + optics. Be careful buying used as most of these may be the first addition which do not have the fast ring type ultrasonic autofocus or the mounting plate seal. nor VRII.