I have one already, and the 'real' ones are much better than the pirate-CD's with pdf's you see on ebay, which I'm told invariably misses out some of the electrical diagrams.
It will probably be a bargain when you consider the new price and UK availability.
... be quick less than a day to go.

http://cgi.ebay.co.uk/BMW-E34-5-Seri...QQcmdZViewItem