Looking for a radar to work with navionics PC Plotter

[Wight Mistress]

Hi,
At the London Boatshow a couple of weeks back I splashed out and bought Navionics PC Plotter plus the chart packages for UK, Ireland and Holland, plus the whole of Europe. I have been running Euronav Seapro 3000 but the cost of chart upgrades and software upgrades is prohibitively expensive for a retired chap like me. In addition I scrapped an ancient Raytheon 1200 radar system a couple of years back, after it's range capability became zero and its round display turned a kinda triangular with curved edges. It was basically ballast so it had to go. Anyway, I am looking to buy a replacement PC for the Navionics kit and am interested if anyone out there has any good ideas about a radar that I could interface (easily?) with it? I have (believe it or not) an ICOM AIS transponder/receiver and a second AIS receiver in my Standard Horizon radio, so to add radar to it could be very useful. Any ideas most gratefully received.
Many thanks,
Steve