Great thread with fantastic posts - thanks all.
I've got a pair of 'Ard cases' which were excellent in a spill in 2010.
At the moment I'm favouring head guards, panniers, quality hand gaurds and rubber indicators - but I'm still open to pursuasion
Decent hand guards would be a very worthwhile addition. As you'll know, the standard 1100 guards don't offer a great deal of protection (for your hands or the levers...). My 1100 had a lie down on a little bumpy Scottish ferry which bent the left bar and clutch lever - didn't snap the lever but it was close. I'd take spare brake, clutch (hand and gearbox side) levers with me
I landed on my feet unhurt apart from my pride. The bike landed on the head protectors and panniers no significant damage apart from a knackered speedo drive cable.
.. Having bmw crashbars fitted caused his bike to be flipped over and truly fecked it. 