I am came from the BlackBerry Curve 2.
While I am not all about hitting the Root game as of yet I am into seeing what the best is for the Droid 2.
Here is my list of Accessories:
Jawbone Icon Bluetooth Headsets - The Thinker
SanDisk 16 GB MicroSD Memory Card
Verizon Shell/Holster Combo case
Extra Standard Battery
2 Multimedia Charging Cradle XT (One for home and one for work.)
Anti-Glare Display Protector
Here is a list of my current load of apps from AppBrain.