Lintronic is a VERY VERY flexible device. As has been stated below. A simple Radio Shack power adapter will do. The "Configurator" is the application you use to program the Lintronic455-238, unfortunately, the app is windows only. So if you have a preintel mac, you'll need Virtual PC and Windows XP as well as a keyspan serial to USB adapter. I have a Mac at home, but I used my (UGH) work PC to program the lintronic. With PC's all you'll need is a male to female serial cable.
The latest version of configurator is very simple to use, and with a little practice you'll be working with it quite well.
I'm in the US, but the Lintronic developer is VERY helpful if you get into trouble or are confused (via email).
I can attest to his willingness to help out.
Feel free to message me and we can chat offline if you want any more information from a person who very very very recently purchased Lintronic and has worked through the little aches to get it working well.
-Sal
Love B&O, but no longer addicted.