Whats the best car satellite navigation system for Ireland and how much is it?

road map not more than 25 quid|||you cant really go wrong with tom tom...e-bay are selling them or they start to retail about 拢160 upwards....if you dont want to spend that much get a cheaper system and just buy the sd card that has all the maps on there.....some systems sell with uk,ire and europe already stored on them...hope this helps....