I think you mean "xeriscape".
There's a ton of help out there for someone in AZ who wants to do a xeriscape, and no, you don't need to have a yard of rock. Try
High Country Gardens, first off, and visit the local library or bookstores. (You won't believe how many books there are on xeriscaping.) You might also try your nearest botanical garden, most of which maintain a staff of Master Gardeners besides the official ones who will answer questions.