Hi There, this is what I am doing:-
Sky HD to Tosh LCD via HDMI in living room
Sky HD to Samy LCD via component into bedroom - Magic eye for remote.
I am running the component feed over a cat5 cable using baluns and the stereo audio over a cat5 using baluns.
The picture quality is stunning, I was quite sceptical about the picture quality over unshielded cat 5, but the pictures are amazing, I am VERY pleased!!
The muxlab product, also available from the uk
www.madnat.co.uk (who were very helpful! - I am not connected to them, apart from being a happy customer) uses component and a digital audio feed over a single cat 5 run.
I doubt you can use the digital input in the second room, so you will need a second cat5 run to send the stereo signal.
This looked a little expensive using the muxlab products due to the way they are packaged.
I chatted to madnat and they also sell another product that is not in the web site yet. it is aimed more at installers. this is a component feed over a standard cat5 and then you buy two audio kits to make up the stereo feed over the other cat5.
this worked out a lot cheaper than the mux lab option.
I have a muxlab scart kit and it is good, but the cheaper installer component balun is very well made.
I did the HD feed to the bedroom for around £115 (for the Baluns)
I know the muxlab product mentioned up the thread looks cheaper, but that is only true if you can feed coax digital audio into the muxlab balun (SkyHD is optical) so you need a converter. then you must convert it at the remote end if your tv accepts optical. but I do not know of any tv's ( aim sure there are) that accept digital audio IN. so you are now looking for a digital audio to analauge stereo converter......
so by the time you add on the agro and costs of the converters it costs a lot more.
email madnat ... there is a contact us part on the website and tell him that you are after the same as martin miller was after (the installer component and stereo audio over two cat 5 runs) and I am sure he will hep.
If you are going down the muxlab route, madnat was the cheapest I have found for them int he UK. the US options were a little cheaper but I was concerned about import tax as the would have made the US option a LOT more expensive.
Let me know how you get on
Cheers
Mart