Help Finding The Right DJ?

Hi Party Pop People--
Maybe someone can help me. I`ve never thrown a big party before and we are trying to find a good DJ for my daughter`s bat mitzvah. We were given good advice to look through the local DJs here:

Which helped a lot, but now we have the opposite problem- narrowing them down! If anyone has any criteria from when they hired a DJ for a similar, mid size, family oriented party, please let me know.
Thank you!
Sarah