I got a princess one for my baby girl too who is due in November! When I went I asked if I had to just pick the princesses they had examples of and the guy told me I could chose any princess. It could always depend on who your artist is as well!
I got a letter A done as tinker bell. The letter was $15, and $3 to have the remainder of the name done in calligraphy and another $3 to have Disneyland 2013 written in calligraphy. The total with tax was $ 22.68 in February 2013. I didn't purchase a mat or frame, but was able to find one. Frame 9x9, mat 6x6.