To my surprise this doesn't seem to have been asked here before (or else I can't work search

). Anyway, I was chatting to an friend who is looking to buy a GPS for use while flying a spamcan around the south of England. I know nothing about them and he is offline, but I said that I knew a place to ask....
Budget will stretch to around the price of a Garmin GPS195 (i.e. roughly £700) but he would prefer to spend less. It needs to be handheld as he rents aircraft, and other priorities are ease of use and ability to run off batteries. Moving map would be 'nice' but he isn't sure if it is worth the money.
Obvious candidates are the Garmin GPS195 and GPS-III Pilot and the Bendix/King Skymap II (although my research runs no further than the Harry Mendelssohn ad on the back page of Pilot

)
Thoughts?
Cheers