2012 was my first year on an FJR and my first year of 'serious' touring. As I am now retired, I intend to do a lot more in 2013. So, as a 'touring newbie' here's my .02 cents (CAD .025) worth.
+1 to everything Spud says.
Never thought I'd need GPS - now I don't leave home without it. When in Canada, you can use it as a speedometer.
A tank bag is very handy for quick access to your passport, camera, toiletries etc, plus you can easily take it with you when you go for a meal, leaving your other stuff safely locked up.
Leave your exhaust stock. Get a Bluetooth headset to communicate with your buddies (they will need the same of course).
My headlights are stock and perform brilliantly (sorry, couldn't resist that!), but there is a lot of info on this forum on aux. lighting.
Are your mirrors a problem? If so, again, lots of info here on replacements or extenders.
I had my stock seat rebuilt with orthopedic foam locally, it works for me. Others swear by aftermarket seats.
Rode the first couple months with stock bars, then added risers. Really helped my arthritic shoulders.
Hope this helps?
Al.