Just a quick tip for anyone who may be interested in using Google Earth to obtain waypoints for their GPS (places of interest and suchlike which may not be in the aviation database). If you place the cursor over the relevant point on the satellite image you can read off the Lat/Long on the bottom line listed as Degrees/Minutes/Seconds (DMS). The following web site will convert this to Degrees/Decimal minutes which is the standard GPS format:
www.terraserver.com/tools/degrees_converter.asp
This is also handy for setting up car SatNavs as I often find that postcodes can place you several hundred metres from your destination ... with Google Earth you can arrive on the dotted centreline of the driveway (or runway!) .... at least where you're covered by one of the brilliant high res images !