ElectricalGuy 0 Newbie Poster

Dear all,
I'm going in a project with some friends where we will need to get input voice, or maybe photos, from many places.
We thought to make a wireless LAN to get that data to a main PC where a program supposed to be written by us should receive the data, perform some processing on it and then send True or False to some control devices.
Could anyone help me in that? About how to make the network and what we need to receive the data in our software.
Thanks in advance.
Tamir Darweesh.