I vote NISMO...as for colors, I have black and have had black cars in the past...they are more upkeep to keep from swirling the paint, etc. But when waxed and clean they look great. White is safe and wears better, at least in the sun down here in Sunnyland. Gunmetal is nice, light enough it's not a PITA but dark enough at the same time...tough call.
On the whole price thing, find a used one with a few thousand miles. Got my '09 with 3K on the clock, pre-certified and 100K BtB warranty out the door for $34k. I generally don't buy new, but then again, I've had my NISMO for 6 months now and everyone that knows me keep saying it's time to trade in as the oil will need changing soon...