The Dow closed slightly down today from mixed results among stocks, and in anticipation of the Federal Reserve statement scheduled for later this week.  It finished the day minus 26.11 points to close at 12,479.88.  In housing stocks, Nobility Homes gained 3.25 percent, Cavco and ELS were both up .37 percent, and Sun Communities gained .27 percent.  On the negative side, Palm Harbor lost 4.76 percent and Sky Harbor dropped .62 percent.  Deer Valley remained flat.  The Manufactured Housing Composite closed up .26 percent to 1212.10.