thanks for all the replies.
as far as a story behind it - well pure luck! I had found a distant cousin a couple of years ago in Oz. He was contacted by my sister thro Genes Reunited about a common ancestor (bearing in mind she has literally just started researching!) and mailed me about it. He passed my email address on and as they say the rest is history.
As well as four new sibs I have an additional nine nephews and nieces, have contact with my long last aunt, and my father's second wife.
I had found my aunt but had never had the nerve to contact her, so this is doubly pleasing.
Sadly my father and grand parents are all dead, but still mustn't be too greedy!
no further news to report at the moment except i spent an hour on the phone with the eldest of the girls last night. Funilly enough they all live pretty close - in neighbouring counties. even funnier as kids they lived in a town which i drive thro about once a week!
Sue