Over on Autopia, I had read about Mintex pads and how good they were. For GP, I decided to look at Mintex to see if they had brake pads for Maximas. Sure enough, they do.
Here's some info about the company:
http://www.mintex.co.uk/index.html
Here's some part numbers/info for the A33 (3.0):
Front Pad: MDB1451 Front Rotor: MDC1546 Rear Pad: MDB1501
They also have pads for A32 and J30 Maxes.