Avmap EKP-IV ? .. avoid it like the plague .. I had 3 different units crash on me in under a year. Customer support in Europe is $hite (total $hite). Big pretty screen, lot of potential but ... not worth the money (over £1000).
Garmin 496 - screenshots look pretty in print, but try one for real in daylight first ....
I use this -
Lowrance 200C .. and love it. Big brigght display, and good terrain.