Congrats bud.
I also remember wanting a 320d and it just so happened that the 30d fell on my lap. It's an excellent car!
Enjoy it stock for a little while. Check to see if theres any preventive work u wana do before committing to the software (gearbox service for example). Coz once u plant the tune to this engine, its gona become another beast altogether... will also give u a good idea of how much more power it will make over it being stock.
The joy of owning a 30d will remain with u for a long time.
Many safe miles ahead man and congrats again