Not just Dallas, but for all of North Texas itself, many (most?) pro photographers, studios, ad agencies, etc --- they tend to use THE COLOR PLACE
. They have a site online, too: http://www.thecolorplace.com
and the photo page is at http://www.thecolorplace.com/Solutions/photo.htm
Indeed, as they say, well-known much farther out than Dallas, excellent quality work. It's going to cost more than Ritz, Walgreens or Costco -- but for just a few special prints, why not?
Another really good place is BWC. They're also online at http://www.bwc.net/bwc
-- nice looking site, too! (May have to put a screenshot in the good designs gallery.)
I used BWC a lot, and they were sometimes cheaper the The Color Place. On the other hand, BWC didn't always offer everything that TCP did. BWC used to process B&W film too, something I used when I was lab-less.
I'd contact them both about what you want, get price info and turn-around time information (these are not wait-while-it-prints establishments).