What do you plan on doing? When I bought my 08, it had a Corbin saddle, MRA Vario windshield, and Two Brothers exhaust already installed. My backside loves the Corbin saddle, but my ears and neighbors didn't like the Two Brothers so I re-installed the stock exhaust and am happier with it. The MRA Vario will one day be replaced if I can ever decide which windshield to replace it with.
So far I've added Givi V35 hard bags and an Axio tail bag, both of which I like very much. Also installed a Skidmarx rear hugger fender, Moto Werk footpeg lowering kit (which makes riding more comfortable even though I have relatively short legs), a PIAA Sport Horn (much better than the stock wheezer), a Sun Star 43 tooth steel rear sprocket (same manufacturer as the stock sprocket), a pair of Grip Puppies (they slip over the stock grips and virtually eliminate any buzzing in the bars), and a few other bits that slip my mind at the moment.
Potential candidates for addition include: a gear indicator light, Fenda-Extender, and BMC air filter but who knows when.
Good luck and have great fun with whatever you decide on.