Thats what I figured, I just made myself paranoid. When server 2003 first came out, the nvidia and ati drivers kept BSODing the system. Luckily Ati quickly came out with an update and the system has been stable ever since.
Since the PCI Express 2.0 is still realitively new for server standards, I wanted to make sure I wouldnt run into any weird driver issues that I wasn't prepared for.
Thanks for the help