Good graphics card under £150 ($274)

[beedubaya]

GeForce FX 5900. $257

 

[Apokalipse]

the 9800 pro outperforms the 9600 XT which outperforms the FX5900

 

[WQ87]

the 9800 pro outperforms the 9600 XT which outperforms the FX5900

No, you are wrong. With newer Forceware drivers every month, it goes like this:

9800 Pro > FX 5900 > 9600xt