Gil Travis (semperfifishing) on TheHullTruth is selling Garmin 840xs for $425 and with a GT20 transducer is $50 more, he ships anywhere in US for $4.95. These are brand new units he has in stock and comes with full Garmin 2 Year Warranty. Good deal, thought I would pass along. Here is Gil's contact info:

travis.g@sbcglobal.net
1-800-925-0341