I'm going to buy a hd-dvd addon and remote from gamestation.
Its £19.99 for the drive, £24.99 for drive with 2 disks.
You will have to undercut gamestation by a fair bit to get my interest (I dont mean that as bitchy as it sounds!)... or other be a decent bundle (though unless its a great bundle, I'd rather just have the drive.
I have to state a price, so I will say £10 for a drive. Willing to listen to offers, but time is against us.