Sorry, I was out of town and not really checking this part of AVS at all... Here's a photo for you:
There is no difference in HDMI cables. If you can see the picture without visible dropouts or sparklies, the cable is working at 100%. No other cable will display a better version of that picture. You're simply wrong if you think there is a better digital cable than one that is already working.
You might contact RS Scene Automation as I believe they make an board that controls 4 lighting loads (so you'd only need two of those) and they offer in-wall keypads with 4 sets of buttons (again, two of these). The price is right and they are very knowledgeable. The keypad is currently labeled open/close for shades, but that be able to be removed, covered, or lived with.