Hi Bill,
I'm good with the style (a bit Porsche-esque though
) but consider a few things:
1) Many folks go at least 18" on a 350z - some even push 19"...these are 17".
2) Zero-offset may not be 100% right for the 350z - call them to ensure they will fit otherwise you may need spacers.
3) IMO - you need to go much wider than 8". 9" would be my starting point recommendation for the rears. Typically, you can get a staggered set of wheels that will look better, more aggressive, etc. with 8.5" front and up to ~11" rear on the 350z. 8" will look like bicycle wheels on your car...my two cents.