www.e-classifieds.net you should check them out. their photo version is cheap and very easy to setup and install. as well as customize.
direct link to photo edition:
I had a realty site running with the program, but I had to switch servers so its not online at the moment, I have a few screenshots from when it was however if you'd like to see them. it has built in banner rotation as well. Around $100.00 and there are even hosted solutions as well.