I am thrilled for you! This is wonderful news.
For bedding, a lot depends on what kind of cage you will be using. Ifthe floor is slippery at all, you can put down a bit of carefresh orjust place straw mats around (you can find cheap placemats that workgreat for this!). Another thing I use is those puppy accident pads youcan find at walmart for cheap. Those are also great for litter training(as long as she doesnt try to eat them).
Do you know if shes litter trained? If not, I would still get her alitter box and get her started. As others have mentioned, woody petworks great for litter boxes. If you have a Tractor Supply Store (TSC)or other feed store, they will carry it or something similar. If youcant find that, Yesterdays News cat litter also works great and ischeaper than carefresh.
Good luck and keep us posted! It will be great for Domino to have a buddy!