Assuming that you use new, currently available parts, I favor Phil rear hub (135 mm OLD) and bottom bracket, Schmidt SON dynamo hub with E6 or Lumotec headlight, Sugino XD600 crank (comes standard 46-36-26T but I'd change the granny to a 24T), Nitto post (Crystal Fellow or Jaguar), Nitto Pearl stem, Nitto bars (your choice of model), Brooks B17 saddle, Shimano R400 brake levers, Shimano 9-speed bar-end shifters, Stronglight A9 headset, Shimano XT rear derailleur, Shimano LX front derailleur (sized for 46T chainring), Velocity Dyad or Sun CR18 (polished) rims (36H), 14/15 spokes, brass nipples, Velox rim tape, Panaracer Pasela Tourguard tires, Specialized Airlock tubes, Shimano R550 canti brakes, SKS fenders (or Berthoud stainless), Tubus Cargo and Tara racks, Arkel or Carradice panniers (depending on whether you prefer many small compartments or one large compartment), Carradice Camper Longflap saddlebag, and Shimano skewers. What have I missed?
The XTR rear derailleur doesn't really give you anything over XT except weight savings. Plus, it's titanium mounting bolt is hard to find and expensive to replace if it breaks. Most front derailleurs perform the same. The Deore LX is available in a size that works well with most touring-size chainrings.