Thanks guys for all the info..I know it's hard to put a dollar figure on things but I guess when you have no little people of your own like me, it's hard to think of all the costs..
Everyone I have spoken to have said to me not to worry as people are always glad to give stuff away. DP and I have 4 families (all our parents are divorced) so I'm sure the first grandchild would definitly be very spoilt!! I would want to be getting stuff when it was cheap or on ebay and stuff as the babies grow out of everything so fast. I guess if you get the basics and then expand from there if you really need it...