Do a search for the following:
Panasonic CW-8123-B Slimline Slot Loading CD-RW / DVD
Mapower Slim 5.25" USB2.0/IEEE1394 Combo Aluminum External Enclosure, Model "KC51SC1"
Not sure about places in the UK though....
this is the set-up I'm going to be using in my car....you can see pics of how in my link in my sig....=]