Many good pieces of advice above. I like grip puppies for a cheap way to get the buzz out and to make the grips softer and bigger for my mitts. My GPS was a cheap car unit and went tits up this year during WFO. The 90 degree valve stems are worth every penny -- get the bike effects models which are first class. Some get highway pegs, though I have not. Garauld on the forum (and several other makers) does custom paint, powdercoating and makes beautiful racks you can actually use -- universally hailed as an artisan with steel and welds. auxilliary lights are pricy and many have their favorites, and on my wishlist to avoid deer at dusk. I don't know if the '08's have clutch pull problems, but between pazzo adjustable levers and a GEN I clutch master slave cylinder, I have no problems now. I LOVE the sense of security a SPOT device gives me and friends follow my rides too online. Cool stuff. So much more to spend your money on! Oh yeah, I love my XM radio for long rides and use it in the truck when caging instead of riding. My last farkle was a KJLR650 so I could ride in mud and save the FJR for pavement. You will never run out of options -- like LED running and tail lights, an FJR engraved whiskey flask for the end of the day, etc. etc. Save up for a FJR rally too.
Have to mention freeway blaster horns to replace the stockers -- saved my bacon this summer, and a forum member ?Brodie makes a plug and play harness for them as well. good luck...
EDIT: The best farkle was the aftermarket suspension upgrade during a GP Suspension group buy. Pricey but worth it.