Avoid Raymarine - they say it is all nice and compatible then you cannot connect with - non-Raymarine instruments and they will blame the others never admitting they did it so that you buy their instruments / ais etc..
Have a look at what Garmin
sells if you like their cartography. Their touch screen
plotters work OK and connect well.
Standard Horizon is perhaps not quite that robust (not to be placed in the cockpit
, but OK in the nav station), they connect OK with other brands (NMEA). Their warranty period is also 2 years - but we have their stuff onboard ant it never let us down.
Beware that some newer plotters may be using the newer NMEA
- OK but not yet tested a lot in respect in supporting the slower standard.
There is at least one AIS plotter without chart capability but with some fine points in respect of alarm
functions and pre-visualising the crossing traffic scenarios that you might consider if you can live with a separate AIS / chart devices.
Last year I installed a Simrad
AIS "B" unit with its own little screen
- very easy install, works like a dream and can be linked to a chart plotter (but not to the older Raymarine !!!) It consumes very little energy and doubles as a spare GPS