I sell the navs so if anyone is interested, wether it be just more info or buying one by all means let me know by PM and ill look after you. The Navman units are by far the easiest to use out of the "portable" units on the market. They have 3 models at the moment, the ICN635 (new version of the ICN630 mentioned above), which has 3D mapping, a very clear and loud speaker, and is quite robust, price is around $1200-ish from memory (can check if you like). They have a PDA styled unit which IMO is crap. They also have an ICN520, which uses the same mapping system as the ICN635 (3D), but its also touch screen, which makes it even easier to navigate through the menu. This is a cheaper unit, and build quality is not as good as the ICN635 however if price comes into play then its great value at around $650 street price.