Santa's Bag of Tech Mergers 'Tis the season for mergers, as technology firms go on a buying binge this holiday season that is starting to rival the great M A spree of the 1990s. &lt;FONT face="verdana,MS Sans Serif,arial,helvetica" size="-2" color="#666666"&gt;&lt;B&gt;-washingtonpost.com&lt;/B&gt;&lt;/FONT&gt;