The current generation MFD units are top notch- you can't really go wrong with a complete suite from any of the big names (Raymarine, Garmn, Furuno, Simrad).
We have the current generation e-series from RM, and the system is fully integrated with the AIS receiver, autopilot, DSC, radar, iPad, and sounder. At one time I was of the mindset that I needed stand-alone units for redundancy- no more.
Peter- Marine Insurance Guru & tuna fishing addict!
1989 52' PT Overseas yachtfisher