This SHOULD be coming in my midday post. Shame i don't have much time to play it today but i'm sure i'll fit something in! Will keep people updated on opinions etc.
If anyone's interested, i'm getting it from here
http://www.gameseek.co.uk/pd/Xbox-36...Auto-4-GTA-IV-
Yes, it's expensive, but it could save you a long wait if you don't manage to get a copy on release day.
editage: just arrived! Not bad considering i ordered Thursday.