On my 06,
So far I've addad Dual Star radiator and pump gaurds, skid plate, fork brace(made a big diff. on dirt roads), Sean Ken folding mirrors, Dynajet kit, snorkel removed, 4-3/4" holes in top of airbox (it helped roll-on power quite a bit), doohickey and spring, Acerbis pro-ralley hand gaurds (probably could find something with better hand protection for less $ )
I put on a set of MEFO DOT knobbies, the rear seems to be pretty good, lots of bite in loose dirt, rocks and mud and is pretty good on pavement (noisy as hell).
The front is a different story, it was absolutely squirly on the pavement and I was afraid to lay it into corners, it had no positive feel. I wound up putting the stock Dunlop back on.
Center stand goes on today and proggresive fork springs next week.