It depends on what you want it to do. Do you want a built in GPS, side viewing, deep water capability, color graphics...? With a grand as your budget you have a ton of great options. I currently have Lowrance, Garmin and Furunos for different applications. Eagle is almost the same as Lowrance (same factory) but usually a little more stripped down or not quite as powerful. My favorite as far as ease of us and dependability is Lowrance hands down. Go to the manufacturers web sites and find one that has what you are looking for and in the price range and then shop around. I bought a Lowrance X-125 a couple of years ago online and saved $90 over Cabela's. If you are fishing mainly under 100 fathoms you really don't need an expensive unit, it would be overkill. The X-135 is a great "shallow water" unit with speed and temp for only a few hundred bucks.