As this year evolves more screaming deals will become available especially bank owned properties which have mounting inventories. People who are selling houses this year will take a big hit because of the competition with banks. I would not sell in this market unless I had a lot of equity and had too.
The Obama administration will throw more dollars into first time buyer incentives, tax credits, wonderful interest rates. If you can buy today for cashflow or flip for a profit there is no reason not to get involved right now. It is pointless getting in at the bottom when you have no skills acquired to navigate the market and get things done. The media created this monster to some degree, and now they are scaring those who should be buying in away.
Stay close to your market and become as knowledgable as you can on the dynamics and then go for it. It is never a perfect time - I urged people to exit the market in late 2005 and we were right on the money with that. In case you did not believe me I brought Bruce Norris, one of the best data oriented CA experts to present at the SJREI at that time also. Those who acted then are happy. It may be time to start looking again, we have purchsed three houses in the last four months and are getting down to some serious business now.