Eh, our photographer had a ton of equipment, did an engagement shoot, brought a photobooth (HUGE HIT AT THE WEDDING IF YOU CAN GET ONE), brought a second photographer of equal skill, created a free (we paid, but you know what I mean) wedding album with bound leather and all the trimmings, and was generally a fly on the wall and out of sight the entire wedding with the exception of the photo hour after the ceremony. The guy was legit, and I can't imagine having some noob with a SLR camera doing it. We had some family members that were professional photographers, but we wanted them to come as guests and not work. The dude was worth it. Besides, part of our cost was owning the rights to all wedding pictures, photo booth pictures, and engagement shoot pictures.
The DJ. Well, I guess you could have someone use a laptop and do it. We had a nice venue and our DJ provided his own sound system, his own lighting, was the MC for the entire evening, provided music for the ceremony along with the additional required equipment and was basically out of our hair the entire night and just led the party. He also played every song we asked for and didn't play anything from my do not play list (Pitbull, Rihanna). For having a dude take care of everything and basically control the flow of the evening for us so we could just enjoy it, it was $3k well spent.