The real estate market's greatest losses -- in terms of both dollars and percentages -- have come in tony neighborhoods. That's because jumbo loans have not been available, or were only available at very high interest rates. Jumbo loans typically begin at $417K.

Months ago, a law was passed that allowed you to take out a jumbo loan in expensive housing markets at conventional loan rates. But the loans never really appeared in the market. People thought they'd be able to refinance or move up to a larger house, yet it was essentially vaporware.

Now these modified conventional loans, which are about a quarter of a point higher, finally are showing up. So if you were trying to sell and would-be buyers couldn't get financing, take heart. Or if you wanted to refi a high-cost loan in a high-cost neighborhood, you may be able to get that loan now. The politicians hope this will get the high-end market moving again.

What areas will benefit most from the new influx of jumbo loans at near-conventional rates? Check out the complete list. (Editor's note: This is a PDF file.)