Hi Em, not long now...... there is an article on the BB main site here that might help you. Also your hospital might give you a list if you ask about it.
I got some packs of granny nickers and I thought that they were great although they were absolutley hideous.
Somthing that isn't on the BB article is those long icy-pole things that you can buy in big packets at the supermarket. After I had Yasin my midwife gave me a frozen one pushed into my pad and it was just fantastic to help with the swelling.
I packed 3 seperate bags. 1 for labour, one for baby and one for the maternity ward so that during my labour I had everything I wanted on hand and didn't have to show up with a sherpa to carry my luggage.
The hospital will provide you with a gown to wear during labour but you might prefer your own clothes. There are threads about it here and here.
LOL I just found the thread I started about labour bags before Yasin was born - its just here

My hospital provides a packet of nappies plus wipes etc for changes and itty bitty hospital gowns and singlets. You have to bring everything else.

I'd better read all of this stuff because I have no idea - you'd think that I would have learnt.