Something new... Satmap Active 10 - Waterproof GPS with OS mapping, looks rather nice and they also do a cycle mount that secures to the handlebars so its got possibilities
Review here: http://www.pocketgpsworld.com/satmap-active10-handheld-topo-gps-a10115.php
Website here: http://www.satmap.com/
Review here: http://www.pocketgpsworld.com/satmap-active10-handheld-topo-gps-a10115.php
Website here: http://www.satmap.com/