You should just buy now. In a year prices will be 10% higher, you will lose the mort int deduction, and be paying an extra 50,000 for the typical poway house.

Also moving is a huge hassle, doing it twice is even worse.

Instead of saving for a downpayment, get a 95% LTV loan and pay it down as fast as you can. When you hit 80%, you can either refi or cancel mortgage ins.