I've finally decided on a setup for the Scooby now and have the car booked in next Sat for a full install.
I've opted for an Alpine CD3-103BT heat unit with the optional iPod cable so I can have full control of the iPod from the headunit.
I've also asked the shop to supply and fit a Brodit iPhone 3G dock which looks pretty good. It was this video on you tube that did it for me.....
YouTube - Alpine CDE-103EBT Car Install with iPhone Dock - iPhone Car Kit
The Brodit dock is a slightly different make to the one in the vid but does effectivly the same thing - available here among other places,
Buy a Brodit Apple iPhone 3G Car Holder | UK
I'll get some pics and what not posted up once it's all in