Bought my X5 in March and so far I've added:
19" Style 132 wheels & Michelin Diamaris tires
OEM Clear Headlamps
OEM Rear & Side Clears
OEM Clear 3rd Brake Light
OEM Running Boards
OEM Chrome Tips
Solaris Bulbs Front, Rear & Side
Hoen High Beam 9005's
Hoen Foglight H7's
K&N Drop-in
OEM Non-Smoker Ash Tray
Bimmian Gauge Rings
NAV LCD Screen Covers
V1 Hardwired
BMW Sunshade
Front Window Tint 20% to match rears
Bluetooth Retro Kit (had a problem with this)
06' Sport Wheel next week.....