We just released a new set off VPC's for Visual Studio 2008 Team Suite (including TFS) which now have the Visual Studio 2008 Team System Database Edition GDR bits installed. These VPC's provide an easy way to test out the GDR release. There is a Virtual PC and Hyper-V based image.
For details check out Brian Randell his blog covering this announcement.
You can download the VPC from the following location:
I want to thank Brian Randell for adding the GDR bits to this wonderful VPC!