i got the lowrance x65c. it is a great unit, but if i was to do it again, i would diffidently get a unit with gps.
i bought mine based on color screen mainly and i thought that if i wanted gps, then i would just buy one on c.List, but they are still expensive. more than if i got a unit with it already built in. also would liked the fact that i could just mark the site directly on the ff and not worry about bringing the handheld gps with more batteries.
i have a garmin gps for golfing, and after two rounds i usually need to change out the batteries. it's a little inconvenient when you forget to put them in your bag......