The Dow fell just over 100 points today to 12,595.75, ending the week 89 points lower than it began, as most housing stocks fell also.  Sun Communities closed up .70 percent, but Skyline Corporation dropped 3.76 percent, MSCI lost 2.50 percent, Cavco dropped 1.98 percent, UMH lost 1.46 percent, and ELS fell .95 percent.  Nobility Homes, Palm Harbor Homes, and Deer Valley Corporation all remained unchanged.  The Manufactured Housing Composite fell 2.35 percent to close just under 1100 at 1099.50, 35 points lower than the beginning of the week.