but what would I need a 75 foot hdmi cable for? Unless I am going into a field that required that? I will stick with a 6 feet one.
I have a 50 foot cable set up so that if I swap it with the one that is currently plugged into one of my systems I can watch films on that system on the TV in my bedroom. Wireless mouse helps aswell for this but it safes having to move the whole system and its real quick and simple to swap the cables over.
Nuck - I have that many speakers for a reason. Yes to many it seems like overkill but they are rarely all on at the same time. It is basicly 4 surround sound systems that all run through different things. I live and work from a 2 bedroom flat and the whole place is wired up so that I can access anything from anywhere in my flat.
As for cheaper cables being affected by power supplies, its a little bit of an urban myth to me. I run nearly all of mine around two computer systems aswell as a massive power outlet and I've never seen degradtion from any of my cables.