Thats a good choice, as is the Matrox G series. I built my fiance a PIV with a Matrox Marvel G450 eTV, and she would never go back to her 32meg ATI All-In-Wonder Radeon DDR.
But keep in mind that the most demanding games she plays is Millionaire and Wheel of Fortune.
Also, though you didnt ask
You may want to consider the ASUS A7M266. It uses the AMD 761 chipset, where the A7A266 uses the Ali chipset. The A7A lacks in performance, badly.
And the FIC AD11 performs just as well as the A7M266 (though less features) but is $50 cheaper than the Asus and it also has onboard audio.
DUDE - Your face is as blue as this screen. Just reboot, you know you like it.
i7 2600k @ 4.6 ghz by Turbo multi - MSI Z68A-GD65-G3 - 8 gig GSkill Ripjaws @ 1600 8-8-8-24 - Corsair H100 Closed loop water cooling - 2 XFX 6870 DD Crossfire - 256 gig Mushkin Enhanced Chronos Deluxe and 250 Gig WD Blue Series - PCP&C Turbocool 850 SSI