Companies like www.mycoreo.com focus quite heavily on the resale of turnover. Resales have slowed down since the economic downturn, but there are still transactions in the market if the properties are priced right. It's still a guessing game as to what the right price is as a large supply has not entered the market, however, the prices that the developers are marketing at will not sell at such high rates. I've seen a lot of people favor renting than selling to try to wait the market out. Hope that helps answer some of your questions.

PS. The people at COREO are quite helpful so drop them a line on the site above if you need any help.