Thank you all for your input. After some more research i have finally come to find exactly what i want. I came to the conclusion that the matt black/pure black rims on black cars just get lost and the detail is no noticeable. The red stripe seems to just vanish in different lighting and angles, unless its pretty wide and a bright red. So i decided to move away from that style and explore something more suitable for a black 370z. My choice:
Vertini Magic Black Machined Face
20x10.0 25 offset Rear
20x9.0 20 offset Front
and I would likely run
Falken FK-452
285/30/20 Rear
255/35/20 Front
Found a very reasonable deal at getyourwheels.com :
Link
Here is a link to what the rims would look like:
Link
Now the only question that remains is, with wheels this big will i need additional spacers or suspension modifications to make them fit under the arches? Also if any of you runs 20" wheels i was wondering how much rougher does the ride get? I find it actually quite comfortable on the stock 18" but these babies will have a lot less rubber on them, so im kind of hesitant right now.