I did, at one time, look at the Redmere cables, however, from my understanding, the design with the chip is essentially to compensate for the thinner cable, not necessarily longer runs. They also are connected with the signal run in only one direction and I have heard of the odd issue with them and would it be worth the risk essentially run in conduit in the wall? Obviously, a further investigation here would be necessary, I think.

There are many HDMI cable options out there, however, one cable I started to use, especially for longer runs and a more secure connection is the "Perfect Path" brand. It is more expensive, however, it is one of the few brands still that actually offers a locking HDMI connection in to one's equipment. I would think this type of cable might have an advantage especially, when the installation is complete and access might be a little more difficult.