you just have to keep on checking all the sites every hour or so, and be prepared to drop everything to go for the right car. i actually found one on auto trader, called up and agreed a price. trouble was i was working evenings and couldn't get there until the Saturday. midwest performance bought it on the Thursday night and i missed out, obviously the price then went up by £1500. all dealers do it anf so many good 350z are getting snapped up by dealers. keep looking and hold out for a good one.
id been looking since January and was getting a bit fed up. found one that had been advertised for about 10 mins, phoned him up and did the deal and collected it on Monday. 53 plate, 62,000 miles full service history, scorpion exhaust, refurbished wheels only 2 months ago. needles to say im very happy