Ditto... I'm leaning towards the Fujimura lip assuming it's CF so that I don't have to paint it. It's a bit more subtle without requiring additional body panels. Mine's is more aggressive, but juts out a bit too far. I also deal with craptastic driveways and objects on the road.
That's why I didn't install the OEM aero lip and air guides.
Top Secret had a nice CF lip for the 350Z, and they also sold the engine tray as a separate item. It'll be nice to replace the flimsy plastics underneath.