Re: best 512 mb graphics card under 250$
Don't you want Vista and DirectX 10 if you're gonna play all the latest games?
Sounds like a Radeon X1800XT would suit your needs. I have one, it works great.
C2D E6600 | 4GB DDR2-800 | 9800GTX+ | Asus P5B-E | 150GB Raptor | 320GB 7200.10 | 750W Xigmatek PSU