On the decline Moody's Economy.com looks at the 100 largest markets and predicts their tops, their bottoms - and total price drops. October 6 2006: 11:42 AM EDT NEW YORK (CNNMoney.com) -- The housing market will get worse before it gets better - that's the finding of an analysis by Moody's Economy.com. In the survey of 379 metro areas, the study's authors project that nearly 20 areas eventually could experience a "crash," or a decline of more than 10 percent from peak to trough. The most hard-hit areas will be in California, the Southwest coast of Florida, and in Arizona...