Thanks for the feed back so far.
A friend of mine has a "second hand" Garmin 196 which is "might" sell to me for about £270-£280 only about 18 months old and in excellent conditon. He's looking to upgrade to a Garmin 496.
I'm tempted by this offer as the new units are generally £450+
What do you reckon "deal or no deal" as Noel Edmunds would say!