Hi and welcome to the forum.

I take it you're coming over from the US, and that you will be studying at Oxford. Have you checked into the sort of visas you will be getting? In general, a study visa will permit your wife to accompany you, but chances are she will not be allowed to work while she is there.

If you can swing it, it would probably be best for you to make a preliminary house-hunting trip, so you can take a look at places to rent. Renting without inspecting the property first can lead to some nasty surprises.
Cheers,
Bev