Rocky
1) The good thing about the Yahoo group is there are representatives from most of the UK's HA suppliers as well as few custom installers. One of those guys should be able to tell if the ulti system is on demo somewhere. I'm sure someone posted a review of Rako on the automatedhome website so you should be able to get some good practical advice from that.
2) The IR repeater system is being developed by one of Yahoo group memebers called Frank McAlinden and there is a link to his website on the links page on automateedhome. He is also an active member of the Yahoo group. The system being tested is called F.IR.M.Jr (Catchy name). Don't be put off by the website.
I bought the Power-mid from
www.letsautomate.co.uk which where I also purchased most of my x10 kit. They have been very reliable and one of the guys that works there is a member of the forum.
The USBUIRT was purchased from
www.usbuirt.com who have just started shipping from the UK. The guy who has disti rights for the UK is also a member of the group!!!
3) The KX project can be found at
http://kxproject.lugosoft.com/index.php?language=en. I just installed an old Sounblaster card in the PC and installed the KX drivers. As the card only has two outputs the PC see it aas two seperate output devices. If you get one of the newer cards then this should be three devices. Great for sending music to the kitchen and maybe even the bathroom if I can figure out a better control solution!!!!
I have been using Homeseer for a couple of years and use it to control lighting and appliances. There should be a new version being released in the next couple of months with quite a few changes. They also have a very active forum. I'm using the full version but depening on the lighting solution you choose might mean you don't even need Homeseer.
Mainlobby was very easy to connect to homeseer as there is a two-way plugin which seamlessly integrates the two systems. All of the homeseer devices can be seen and controlled by Mainlobby. They also have a very good forum.
You should also note that I'm not a programmer/developer and therefore I have more or less just used the stock packages. I get the impression taht most of teh guys on the aforementioned forums are real techies and most of their conversations just go over my head.
To change the TV channel for example:
I have a mainlobby scene with the TV station logo's - When I click on the logo the tablet talk to my Wifi router which sends a signal to the server. The server sends a command to mainlobby server which pushes the IR signal out of the USBUIRT to the Power-mid by the pc to the power-mid by AV gear. This all takes a fraction of a second with no detectabel delay.
To change the lights;
I have a button on a mainlobby scene which controls the three lighting circuits in the living room. Clicking on the button sends a command to mainlobby server and then to Homeseer which then sends the x10 signals to the dimmer packs. There is a slight delay of 1-2 seconds but this is probably down to x10.
I use one desktop PC as my server which stores all my music,video and pictures. It also runs Homeseer, mainlobby server and the XAP services. It's a P4 1.8Ghz with 1Gb RAM so nothing too special. That PC is on 24x7.
As you have CAT6 cabling already installed you should also look at
www.KAT5.tv for a great way of sending video and audio across structured cabling. The guy invented this stuff is also a member of the UKHA forum.
If you want to ask any other questions please just give me a shout.
HTH
John