Are there any rubbing issues in the rear, especially when lowered.

There's one member here, he's got a picture in the "show me your wheels" sticky and he's lowered. As i recall he doesnt have any rubbing issues. The wheels are only 8.5 in the rear so you should have no problem.
-GP-

Should be no problem

No problem! Lowered on 04.5 springs and shocks and had the shop keep a -1.5 camber for rear wheels. 245/24/18 tires and no rubbing with even 6 ppl in the car!

No problems for me either. I also am lowered on 350Z suspension. Also pulled up my driveway with the rear wheels tucked way under and still no rubbing.

That's good to hear because I have my sites set on those new 350Z 5 spokes

The 18"/19" Rays staggereds? Might be too wide. The non-forged 5 spoke 350z 18s are very nice looking. But will be pretty heavy. I had both the older touring Z 18s and the Track 18s. The track 18s were of course noticably lighter.