How can I connect two dual LNBs and then have 17 point in a structured cable network which allow me to connect recievers at any of the 17 points and have access to all channels. What type of switches and where can I source them?
Yes, DBS is simple, and if it were just a matter of one dish feeding several outlets a regular multiswitch would do (in this case, probably a dual amplifier and 2 or 3 multiswitches. The largest I've seen is 2x16. If he needs terrestrial as well as DBS, he would need a couple of 3x8s and a 3x4. Better yet would be to use a Spaun SBK 3203NF in conjunction with 3 SMK 2261F multiswitches.). But where he's looking at 2 satellites, that's a different story.
Unlike DTV (DirecTV), where everybody and their dog makes equipment (stacking equipment, receivers, multiswitches)(use a Holland or Terk 5x8 multiswitch to feed a couple of Hughes, an RCA, a Philips, a Sony and 3 DirecTV receivers) that makes the system work and you can mix-and-match all you want, with Dish Network you have to use Dish Network (EchoStar) equipment. Again that's for multi-sat systems.
That is THE reason I won't do a Dish Network system. I don't like being forced to use a particular manufacturer.