20
4 projector (+ 4 long cable RGB DB-15 )
2 TVs LCD (preferably identical to both boards came to TV, so you can leave us one and the second to give the audience)
2 tables
4 chairs
An audio mixer (+ 1 added)
2 columns (respectively + wires to them from the mixer, plug jack 1 / 4 ")
also need the following speaker wire:
2 * RCA -> 2 * jack quarter, "perhaps through adapters, 5 meters long - 2 pcs.
jack 1 / 4 "-> jack 1 / 4", 1.5 m long, 8 pcs.
2 * RCA -> mini jack, 1,5 m long, 3 pc.