Refurbished: HP AMD FirePro V7900 PCIe 2.1 x16 2GB Video Card, 654596-001 - Newegg.com
Amazon.com: HP 680654-001 nVidia Quadro 2000D PCIe 2.1 x16, 1GB GDDR5 memory graphics card - With two DisplayPort and one Dual Link DVI-I connections : Electronics
ASUS Radeon HD 6870 Video Card with Eyefinity EAH6870 DC/2DI2S/1GD5 - Newegg.com