I first posted on another thread, but probably wasn't the best place. I am a DTV customer (over 10 years) and thinking of switching. Currently am researching cost, capabilities, etc. I have a few questions. I currently have 9 TVs, 6 DVRs(several with external storage) and 3 tuners. How many Hoppers can you have in a system and are they all integrated with each other (talk with each other)? Can you have external storage, and if so how large can the disk drive be? Thanks