Check out MiGSel for a light bracket which sits under the beak. A work of art in laser cut s/steel.
The Motoswitch is Rob Farmer's super little black box which allows you to switch on a set of aux lights via the indicator cancel button on an R1150GS. It operates a relay if you hold the cancel button for more than a second, and switches on the aux lights. Press it again for >1sec and they switch off again. It doesn't interfere with the indicators because, if you press for <1sec, it still just operates as an indicator cancel button. I tend to just tap it to cancel the indicators so I asked Rob for a shorter delay on the switching facility so mine operates after 0.75sec. It's much tidier than having extra switches mounted somewhere and fits nicely into the fusebox.