Save your money and go for a 9700 Pro - There'll probably be coming down in price when the Geforce FX becomes more available.
Both cards themselves are feature rich in technology that cannot really be utilised until the games support all those extra features.
The 9000 is on par or a little over with the Nvidia Geforce 4 MX range.
If you just want good graphics for games then ok the 9000 will give you that.
But if you really want something special go for the 9700 Pro.