Hi Keith,
I'm also in Munich and looking at upgrading to Sky+, if it's possible (I have the same concerns as you over the phone connection). I'd be interested in knowing if you went ahead, and how you got on.
I've heard that if you buy a new box you can use your existing Sky card, but you need to phone sky up to get them to tie the card to the new box (I would do this from a UK mobile number, not a german number), but do you need to have the box connected to the phone line at the time? I've had my sky subscription more than 12 months, so I'm no longer required to have my existing box connected to the phone line.
If you are still looking for a Sky+ box, someone is selling them on ebay for just over £200 inc postage to Europe.
http://cgi.ebay.co.uk/ws/eBayISAPI.d...category=29784
Richard.