Hey guys,
Couldn't find a thread on this (searched, sorry if I missed it), but as an FYI here's a couple of online parts stores with prices for parts around 20-30% cheaper than you'll find at the stealership.
You can search by catalog term as well as OEM part number on these sites.
One is closing soon, unfortunately... search for 2009 for 370Z at both
Nissan Parts Online - Nissan Auto Parts - Online Parts Catalog (closing soon)
Online Mazda Parts (I know it says Mazda, but they can get full line of OEM Nissan too)
If you guys know of others, please post the link
Also, do we have a full isting of OEM parts numbers for everything yet? If not, I'll see if I can track one down...