Congratulations and welcome!
Beg, borrow or steal a moses basket, cos they are very very useful, but only for about a month if you have an average size baby, so quite expensive to pay out for.
For you - millions of paper knickers, supersize maternity pads, breast pads and really unattractive maternity nighties (with buttons if you plan to breastfeed). And some totes toasties, so your feet don't have to come into contact with hospital floors! A couple of nursing bras also if you plan to b/f, but get those at the end of pg so you know more appropriate size.
Baby - Bath towel, nappies, cotton wool, hat and one big cardie, blanket, vests, baby grows. Don't go overboard, my dd was never sickie, so one outfit a day was enough, on the other hand sickie babies can need several changes a day.
For home, lots of toilet roll, biscuits and teabags for the guests!!
A good idea, is stock your freezer with a few meals so you and your dp don't have to think about cooking for a few days.
And i would recommend one of those banana shaped bean bags as it is useful for many things - sleeping comfortably when pg, propping baby on to feed, and later acting as a support cushion when baby is learning to sit.
Good luck!