Forgot to mention the Furuno, Norman, how dare I, bullet proof kit, market leaders in customer support over the years, the new TZ series is supposedly the dogs.
i spent a long time researching and opted Simrad over the Furuno 3DNN. I must say i am not dissapointed. touch wood, only winge would be i wished it was c-map not navionics, but thats just me being used to c-map charts.
its a good time, i feel for electronics, they are trying to keep up with each other and the systems are faster, more easy to integrate into networked systems, the sounders are becoming chirp technology, expensive now but you'll see in a few years time they will be cheap and probably become a normal transducer for most
theres a thread on the go at the moment on THT, its the normal, my stuff is better than your set...na..na
it gets hilarious with those over the pond, nutters, probably the most entertaining site i surf, its mint when they kick off and it goes on and on.
but there is also a wealth of information mainly because they can buy cheaper and the massive audience.
best of luck, take your time i am sure you will find what you need.
one of the things i am suprised at is the 3D that hummingbird developed and Lowrance structure scan have emulated, but I don't know of a system for the liesure market that can really say its good for offshore work in deeper water and a bit of movement on the water.
the sounders and transducers are coming into a new era for detail at depth and holding bottom at speed.
One thing I would say is what ever you get make sure the sounder and transducer is the best you can afford, i have had a couple of 1kw inhull M260 and they hold bottom excellent and great detail on the bottom, BUT would have gone chirp if it wasn't for the 5-6 grand for the sounder black box and transducer !!!
also look at Panbo, he has a great review site of everything that comes out
Panbo: The Marine Electronics Weblog: Thinking big systems, Furuno NavNet TZ included
glad its not me again............
hope it helps
paul