Thanks for that advice guys. Since I last posted I have had a very useful email from the Flymap people in Germany. It seems that the up to date CAA half and quarter mil charts are available as well as the Jeppesen ones. The prices for half mil appears to be competative with the Memory Map and pocket FMS - perhaps slightly more than Memory Map. Think I may go for the quarter mil, which are useful for low level VFR, which is what I mainly do now.