In the last two weeks I have added/bought/modified the following for my '02 R1150R), and I am very pleased with the results:
BMW Summer Pants with armour & zipp-off bottoms. The feel great. I actually found a pr in Illinois that fit me. BMW cuts roomier cloths compared to Revit, and others. When you have a body built by pasta and Haaagen Daaz rather than soloflex, this is important.
Foot peg lowering kits and modified extended shift lever from Suburban Machinery. Good Stuff. Only had to modify one screw (cut about a quarter of an inch off) with a dremel in shift linkage for a perfect fit.
Bar backs-very nice. I actually feel like I am now on the bike rather than over it.