We only validated the following Dell OEM video cards on our XPS 8300 460w power supply -
KP8GM AMD Radeon HD5450
HWHRN AMD Radeon HD5670
GCJ42 AMD Radeon HD5770
2XTG4 AMD Radeon HD5870
HCVMH AMD Radeon HD6450
8F60V AMD Radeon HD6670
8PJF8 AMD Radeon HD6770
Y9XH7 AMD Radeon HD6870
4VDWW AMD Radeon HD6950
VH86X Nvidia G405
X78HM Nvidia GT420
WGP2G Nvidia GTX560

She is not a gamer but would like better quality HD graphics like 1080. Her monitor is a Dell SE1987WFP Digital. So which video card would give her the best bang for the buck? And if her monitor don't support HD, that will come next.

Thanks in advance,