I have a Canon Powershot S50 5.0 Mega Pixel.
More Background here, with picture
http://www.dpreview.com/reviews/canons50/
Unfortunately I dont know too much about it really, because My father passed it onto me, and it was dropped at some point, so lost Screen and the Option Markers! It still managed to Produce the above amongst a lot of other nice shots on that day.. So its good!
Im guessing they will be worth a lot less now than what they used to be, like lots of other electronic things! You can probably pick up something much more advanced for what this was worth a few years back..
Hope you find a good un! And enjoy Snowdonia - On my hit list one day, cannot wait!!