First, congratulations on the new baby coming. And good luck with the birth!
As someone said above, maybe put your daughter in her own room from tonight on so she gets used to being in her own room and then when she becomes a big sister, just keep her involved in everything going on and make sure she doesn't feel excluded, which I'm sure you won't! If people bring presents for the new baby, then make sure you give something to your daughter as well so she doesn't feel like the new baby is getting all the attention that she's probably used to. I guess just make sure she feels involved as the big sister.
Sorry this is my best advice, don't have any kids so hard to put myself in that situation but I'm sure you'll manage really well.
Although moving house does make it even more chaotic of course!