B.,
I think I may have a perfect suggestion for you: Sun Valley Community Church! They are located on Ray Road just east of Gilbert Road and just moved into their beautiful new facility right next to the original building.
Our family has only been in AZ just over a year. We intended to get involved right away with a church because that is what we were used to in MI and have always done. Sun Vally was the second church we visited and we were hooked! :) I found out later that a majority of their attendants are from the Catholic church, so I think you would feel right at home there.
We have a Baptism coming up on April 13th, so you may want to visit just to attend the Baptism service, which is right after the 11 a.m. service on Sunday. I would like you to note, however, that instead of Baptizing infants, most non-Catholic churches will instead dedicate babies to the Lord until such time as they are able to make a conscious personal decision to be Baptised, understanding what it represents.
What we do instead is have a very special ceremony for our children where we didicate them to the Lord, trusting that they will one day make their own decision to be Baptised and promising that we will teach them about God as they are growing to that point (and beyone, of course).
I am sure that you can call them to discuss your interest in infant Baptism and speak with a staff member about the wonderful dedication class and ceremony they offer. We just dedicated our fifth and it was a very meaningful. I think you would agree.
Either way, I wish you the best! :) Here's a link to their site: http://www.sunvalleycc.com/
Please fel free to contact me if you would like any further information.