In reply to kestreslspl:
I've got an etrex 20 I don't use as I have a team-standard Satmap. It has some Alps mapping loaded. Only used about 6 times, got it in March.
Would do a deal for £150 posted if you're interested.
Mapping can be bought and downloaded from Garmin as required.
I actually prefer it to Satmap but have been told I don't need two units...