Yes, I know it's not released until October 19th, but I saw this "Special Edition" & thought I'd post (before Amazon change the price).
Special edition contents ($89 in the USA, no UK price announced yet) as reported by 1up.com, The Grand Theft Auto IV special edition includes:-
Stylized metal safety deposit box,
A copy of the game with special packaging,
A behind-the scenes art book,
Soundtrack CD with exclusive tracks,
and a customized Rockstar Games duffle bag.
The release date is incorrect at present on Amazon's site, but fingers crossed this comes through!