[sami]

thanks soooo much for your reply. yes, i am extremely stressed. after a month of reading and discussing have a lot of information and not much better off. buying it in a few days and still confused. this person will just use it for astronomy and really may just have time on the odd weekend. wanted computerised obne that does all the finding for you and has limited space. they don't know i'm getting it for them so want to get all bases covered. will look into the skywater one that you have recommended. also if anyone else has any suggestions.........