Once you start spending money on bike upgrades there seems to be no end and terms like "bottomless hole" pop into mind. Anyway, thought its better to be safe than sorry, so I added the following items:

• new chain
• new sprockets (front and rear)
• new brake pads (front and rear)
• Continental TKC80 tyres (21" front and 17" rear)
• Touratech radiator protector
  
• Touratech Handlebar Raisers
• Touratech hand protectors
• Touratech rear suspension protector
• Scott oiler

Not much else I could think of, really. Hope it will do the trick!