I've tried tracking down bikes I've sold, but never had any success. My Nighthawk 750 pops up on Craigslist about once a year or so. My particular luggage/windshield/mirror combo is always a dead giveaway that it's actually my old bike.
Found a clean, low-mileage example of my first street bike (but not
my ZR7 in particular):
http://atlanta.craigslist.org/atl/mcy/4042396841.html
I'd be very tempted if the price was closer to $2000-2500. Good chance the seller will still have it this winter...