FYI: OEM 19's specs for the G35 Coupe
 

I saw a few postings here and there and had to scramble around to consolidate it. So just in case someone wants the OEM specs of the wheels and tires:

Bolt Pattern: 5 x 114.3
Wheel sizes and offsets: 19x8 +30 front, 19x8.5 +33 rear
Wheel weights: front is 19.5lbs, rear is 20.5lbs
Tires: Bridgestone Potenza RE050A
Tire sizes: 225/40/19 front, 245/40/19 rear