The big business deal of the day concerned Dell and Perot Systems, and honestly, "big" probably doesn't begin to cover it.  The first company bought the second for a whopping $3.9 billion. Analysts seem to feel that Dell was within its rights to target Perot Systems; Dell's revenue figures have been dropping, and Perot's angle as a technology services provider should mesh pretty well with its business. Also, this is the second Ross Perot-founded company to sell within two years, so it's ...