If you have a Raymarine chartplotter, get the Raymarine radar too - they
connect better, knobology etc is the same.

If you don't, get a Furuno. They are more reliable and robust from most
reports I read. Also choice of fishermen - so probably good.

I have a Raymarine chartplotter and got a Furuno radar. It has been great,
but wish I had gone for Raymarine for the reasons I mention....

Thanks for all the advice. I think I'll go for the Furuno 1623 -
seems to be good middle of the range device.