HDMI cable length...how long is too long ?

Ok... would cat5 work better with the wall plates ?
How futureproof is the Cat5 set up ?

internetmin said it best.

Run MANY cables

Each HDMI cable should be one long cable not going through intermediate wall plates. Two or more.

Run 2 or more Cat6E with wall panels

Run run through wires that allow you to pull new wires through the walls should the need arise.

Anyone else have any experience with the Redmere cables ?

If you all don't use wall plates...how do you treat the hole in the wall where the cable enters and exits ? I don't want to just have a hole in the wall with a cable hanging out of it . The WAF thing ! Also not very energy efficient .

Thanks

If I didn't already mention, I'm using Redmere cables. They work fine.

In terms of the "holes" you use special wall plates. I'll send you some links so that you can get a better idea.

Here you go. Special wall plates exist so that you can "home run" cables without needing to terminate at the plate and then add more cables again. This prevents signal loss with a home-run connection. For example, to run HDMI Baluns with Cat6 you cannot cut the connection with a wall plate. So installers use one of three options:

1) An open plate. You can chose different diameters depending on the number of cables. An example is here: http://www.monoprice.com/products/product.asp?c_id=105&cp_id=10425&cs_id=1042509&p_id=3997&seq=1&format=2

2) A plate with a bristle-style opening. See the second plate in this picture: http://www.lowes.com/pd_12862-60784-HT2001-WH-V1_0__?Ntt=legrand+hdmi&UserSearch=legrand+hdmi&productId=1214179&rpp=48

3) A plate with a rubber cover with slits in it. http://www.monoprice.com/products/product.asp?c_id=105&cp_id=10425&cs_id=1042505&p_id=4653&seq=1&format=2

So using this kind of solution is really ideal with HDMI installations. Additionally, it allows you to install a pull string and put a conduit behind it for future wire run pulls with ease. As you can see, there's a very easy and simple way to do this and also make it look aesthetically perfect.