Regarding under 5000 buck upgrade, I just broke my bank with the GPS store booth at the Miami Boats Show. Garmin lowered the prices of their 5200 and 7200 series MFD's the day before the show. We narrowed the choices down to Simrad's PSS 12" and the 5212 Garmin, but during the final comparison, the extra $500 for the twin processors of the 7212 didn't seem so out-of-line when we asked both machines to do some heavy-duty calculating or video. Both the 5200 and 7200 series screens could be split into four different views of most anything, but when asked to display a video input alone, the 5200 series could only manage a 5 X 7 screen size while the 7200 could do full screen. When looking at camera video of engine rooms etc. and enlarging for detail, the twin processors really help. So we did it. A 7212 with 18" Garmin radar dome and a sound box for bottom detail, plus a detailed chart card (you know, in addition to the charts it has bottom very detailed bottom contours, 3D mockups, satellite views of water, land, marinas, inlets, and on and on) for southern Florida and Bahamas, all stuff that my Admiral plays with, and of course the backbone and everything to hook-up the system minus the transducer (not sure if my current unit will work with it), $4650.