The more you look the more you realise you don't have a clue what you're looking for.... Think I may have narrowed down options to: - AEGIS - some ESRI derivitive - Google Earth Pro Anyone got any evaluations? Effectively want to be able to network the software easily, use with our own data but easily access base maps. Cost is a little bit of an issue. From what I can see only AEGIS is one-off fee? Any ideas would be much appreciated!