I have always (until getting my Galaxy SII and thus using Wisepilot) have sworn by Navman SatNavs.
Mrs T has a S80 in her car and I have a N60.
Come to think of it, the N60 is no use to me now, would you be interested in buying it?
The s and N series have been superseded by EZY, Tourer and Panoramic models. The EZY seems to be the updated S series (everything in one box).