Trying to guess how far housing can go; boy, is that a tough one. What do you think? Does 10 percent sound like a reasonable number? What about 20 percent?

Here is what Businessweek has to say

As Washington policymakers struggle to keep the U.S. out of recession, the swirling confusion over the housing market is making their job a lot tougher. Will American consumers keep shopping or be forced to pull back? Will banks lend freely or be hamstrung by mortgage defaults? What are the best policy options right now? Those and other important questions simply can't be answered without a good idea of whether home prices will rise, flatten out, or keep dropping.

Some experts have begun to suggest that a bottom is in sight. Pali Research analyst Stephen East wrote in a research note to his firm's clients on Jan. 25 that "the sun is not shining very brightly, but at least the worst of the storm has likely passed." With optimism budding, Standard & Poor's beaten-down index of homebuilder stocks soared 49% from Jan. 15 through Jan. 29.