i,m working on the gps knowledge.the most popular gps with the dual sporters seems to be garmen 60csx. im also looking at a delorme earthmate pn-60wse with spot satelite communicator and topo north america 9.0 $549 new. any body have an idea about this? opinions/facts? is this going to do twt and tat for me? my coupon expirers tommorow at midnite.