I am considering putting in a new depth/fish finder on my boat. I don't think I need a state of the art outfit but I don't think I want the cheapest rig going either. I have a Bottom Line Fishing Buddy II and it seems to be suitable but I would like a permanent mounted unit. I do like the side finder feature in the Bottom Line unit but it is not an absolute must. Features that are a must are a temperature feature, adequate readability on fish, back lit screen (I fish at night some), ease use, easy to hookup and unhook (to take in/out of my boat), and reasonable cost. As of now, another Bottom Line rig is high on my list but I thought I might ask for some advise.