Southwest Fox is held on the Tempe campus, and there are plenty of hotels within walking distance of the student union (where the conference is held).

I attended last year and found it to be a very good, cost-effective VFP conference. Shop around on the hotel rates. You can save a good bit by staying further away and either walking or driving to the conference. I personally didn't like the hotel across the street from the conference (whose name I forget) and switched to the Marriott Courtyard after the first day. No broadband Internet access and tiny rooms at the first hotel made me consider other options.

Ben