I would argue the best handheld GPS is the Avmap EKP IV.
A good place to get it is Harry Mandelssohn
www.gps.co.uk
It has a different shape to the popular Garmins, so it's a question of usage. The Avmap is much easier to strap to one's knee; a very good way to use a GPS which Garmin users can't normally do; they end up fixing their units to the yoke or the instrument panel, in variously unwieldy ways.
The display is excellent and it's very usable.
Navbox Pro
www.navbox.nl now supports this unit for route programming. An unbeatable set-up for VFR (and UK-style IFR) flying.
Not cheap though but I am answering the original question
