After selling my boat during some hard times a while back I am piecing together a small flat bottom rig mainly for crappie fishing. One of my last things to get is a fish finder and I have around 200.00 to spend. I have had both lowrance and hummingbird and am not brand loyal though I thought hummingbird was a little easier to navigate. I have also bee looking at the new garmin units. What do you think best fits the bill for our type of fishing in that general price range.