Wireless front door intercom

I need advice on purchasing a good value front gate WIRELESS intercom with cameras. Two exterior weather proof camera's would be good and a decent size screen inside for viewing.
I've a solid brick wall right in the signal path and the distance from front gate to the base station will be around 25m. No need for internal camera's or extra camera's. The intercom is essential so one can communicate with whoever is at the gate. Some night vision capability would be good with the cameras.
Any deals out there or can anyone recommend a unit that they have had personal experience with?