If you want something that is going to fit spot on... get the real kit.
Sunline Racing:
SunLine Racing^ƒTƒ“ƒ‰ƒCƒ“ƒŒ[ƒVƒ“ƒO
Shine is the knock off of the sunline kit... as is the Seibon, VIS and other various brands.
When it comes to body parts, I'm really particular. I wouldn't get anything that had questionable fitment. The Evo R stuff seems to fit OK, but I know a few people that have had issues getting their stuff to line up. People have had some issues with the Stillen stuff too (although my lip fit fine.)
If you want real, proper quality kits, look at these.
Varis
A Look Into Varis 2010
Zele
ZELE Orange 370Z demo car sales news | News - Press Releases | Zele Performance Global Website
Mines:
http://www.motorworldhype.com/wp-con...70z_cf_lip.jpg
Amuse:
THE REAL JDM
I know there are a few vendors on this site that carry those parts, ask them.