ConceptZ has an OEM upgrade Kit for the non-sport Z. Thats what im planning to get when im out of brakes.
They are a forum Sponsor.
the kit is available here.
Akebono Nissan 370Z F & R 14 Inch Big Brake Kit - performance parts
but it doesn't include the dust-shields. you can get the OEM dust shields and it would be a perfect fit with the kit.
you could also go for the Infiniti Kit witch is about 200 bucks cheaper; if you don'tt mind it saying infiniti on a Nissan.