Rob,

We've been very pleased with our Bosch BEA 350. It's not pc based like so many setups which makes it very quick and easy to use. They do the BEA850 if you want pc based to add other systems like KTS etc.
Very good service received from Joe at Celtech. Despite being miles away they're on the doorstep within hours if you get a problem. I think he has an ebay shop if you want to look.

HTH
Richard