look here for some ideas:
http://www.mototwin.com/showroom.php
I had a 3000 mile trip last summer. With a Bagster tank bag, Triumph soft panniers and renntec rack I could carry quite some stuff. A dart windshield and a throttle rocker was very nice when doing miles on the highways.
For the upcoming season, I will put on some better rear shocks and swap out fork springs. And a better seat would be nice too. I found that the stock seat foam compressed too much, hampering blood circulation to my lower regions. To alleviate this , I moved my feet around, from using the normal foot pegs , hanging the heels on my boots on the passenger pegs, and simply letting them dangle. I guess "billybars" would be nice for those occasions.
As for the Bonnie being the antithesis of BMW, I have a buddy riding a R1200GS. While he love the ergo's and handling of the bike, he's less than impressed by all that hi-tech gadgetry with the ability to leave him stranded. 1 or 2 times , the bike had just died on him, he had to get the bike trailered to the dealer so they could hook up their diag computer to "reboot" his fuel pump... :???: (All things on that bike is contolled by a CAN-Bus network)