my dad has a tomtom one i recommend one of these as they are only about £100 and covers western europe it is really easy to set up and as far as i know you can set it up to find speed cameras and warn you when you get near. also you can downlaod all the voices and road updates
its £115 from argos and has UK & ROI and europe maps
the link :
http://www.argos.co.uk/static/Product/partNumber/5041806/Trail/searchtext%3ETOMTOM+ONE.htm
good luck