I would say Lowrance systems are pretty good.
I got a Lowrance Elite 7 Gold from marinescreens.com
(
http://www.marinescreens.com/Lowranc...l#.UU03GJNes6E)
It's a really great unit and I find the interface very straightforward. Their price was lower than any other by like $50 and they are really great people... Even called me a few days after delivery to see how I liked it! Try this unit out... You will definitely be surprised by the value.