Few options for upgrade... stay with AMD? Switch to Intel?

[Puddle Jumper]

The only real good quad was the q9550, the rest were not worth the price, and now better cpus are out like the phenoms which are great.

The Phenom II 940 has about the same performance as the Q9400 and loses to the Q9450, q9550, and q9650 so I wouldn't consider it better

 

[Thresh25]

Ultra psu's can be good. I had a 550 watt powering my old system for about 2 years and still works fine.

 

[baron5]

The Phenom II 940 has about the same performance as the Q9400 and loses to the Q9450, q9550, and q9650 so I wouldn't consider it better

In gaming they pretty similar really, the phenom 940 is better because it is a cheaper solution then the intel. But you are right, i thought the phenoms outperformed the q9 series in most tests seems its pretty close but the 9s usually out on top.