Originally Posted by Abbie

This is what we use and camwithherand numerous other sites on the net use etc. However, we've quite customized it to our liking. We have four fulltime developers who have split their time into contributing a great deal into taking this software and making it exactly what we need...and Dmitry (he's in charge of softservice) has been extremely helpful in working with our developers.

You may not find exactly what you want, but if you are looking for something you can customize and build on, I recommend this.