Depending on your board, the 9xxxs might not even be an option. If you decide to buy a Q9xxx, make sure your board supports it. i5/i7 is only great for gaming if you using a multi GPU setup at high resolutions. At 16x10, there isn't much of a difference.
Damn! I just checked, I have 2 boards 680i and none of them support the Q9xxx. So I have no other option than upgrade my Videocards or CPU/Mobo/RAM.
Thanks to your reply, otherwise I would have bought the Q9xxx today.