pikechet

http://www.anglingoutpost.com/humminbird-386ci-combo-pt/ This one is a bit under your price range, but does a great job for both fishfinding and gps. Picked this unit up at the beginning of the summer and have been happy so far.

http://www.anglingoutpost.com sells cannon replacement parts as well. Not sure how old of parts you can get, maybe worth checking out though.

Hey, everyone, my name's Chet and I'm pretty new to fishing on Lake Ontario. Any advice for salmon or trout fishing is greatly appreciated.