out of Chuck Butler's e-letter today:

Tomorrow will be a much bigger data day, as we will get the weekly jobs data along with the Factory Orders and Nonfarm Productivity numbers. And the week will close out with another big round of data with the first monthly jobs numbers for 2010. The recent dollar strength could turn on a dime if this data shows a big jump in the unemployment sector and a decrease in factory orders. Investors have begun to buy back into the 'feel good' story of a US economy which is well on its way to recovery. These numbers could give the markets a cold slap of reality, bringing risk aversion back into vogue.