Just browsing Amazon.co.uk after finding out that Tudors is no longer available (Out of stock? Cancelled?) and saw a ton of nice releases that are either from HD DVD only studios in the US or not yet announced:
Eastern Promises (Universal in US, Pathe in UK): 2/25/08
Rendition (New Line, not yet announced): 3/03/08
Beowulf (Paramount in US, Warner in UK): 3/17/08
The Assassination Of Jesse James By The Coward Robert Ford (Warner, not yet announced): 3/24/08
Pulp Fiction (Disney, not yet announced): 3/30/08
Kill Bill, Vol. 1 (Disney, not yet announced): 3/30/08
Kill Bill, Vol. 2 (Disney, not yet announced): 3/30/08
Any of those would be great to have, and if the "Beowulf" listing is true, I'm supremely glad Paramount didn't hold onto global distro. Please note that none of this has been announced or even rumored AFAIK, but I really really really really hope that these come true.