Something I noticed about your choice of bikes... the Madone and the Rubaix are road racing bikes, the 7.2 is a hybrid (albeit a good one), the LHT is a touring bike and the Tricross is a CX/multi-purpose bike.

WHat type of riding are you planning on doing? Anything you can do on the Madone you can do on the Tricross, but not vice-versa.