Definitely do it yourself; if for nothing else you'll have peace of mind that it's done correctly and you'll get to know your busa on a more intimate basis.
I haven't seen this mentioned in this thread yet, but how can you even think that a mechanic at the stealership will know how, or even care to take the time to properly remove and reinstall the right fairing? Not to mention the scratches and broken/missing nylon pins that you'll note if you inspect their work.