MSI Radeon HD 5450 1GB DDR3 PCI-Express Graphics Card for $14.99 after this $15 rebate. Here is a screenshot for your reference. It features a low profile design with brackets included, maximum analog resolution of 2048 x 1536, maximum digital resolution of 2560 x 1600, HDMI, DVI, VGA outputs, and more. Most places have it for about $36.
Video Card
MSI N8400GS Silent 512MB GeForce 8400 GS PCI-Express Video Card for $9.99 Shipped
For the technically inclined, MSI N8400GS Silent 512MB GDDR2 PCI-Express Video Card is available for $9.99 shipped after a $20 rebate. Here is a screenshot for your reference. It has a GeForce 8400 GPU at 567MHz, 512MB of GDDR2 RAM with a fanless and silent design and supports DirectX 10. Most places have it for over $23.
MSI N8400GS Silent 512MB GeForce 8400 GS PCI-Express Video Card for $9.99 Shipped
For the technically inclined, MSI N8400GS Silent 512MB GDDR2 PCI-Express Video Card is available for $9.99 shipped after a $20 rebate. Here is a screenshot for your reference. It has a GeForce 8400 GPU at 567MHz, 512MB of GDDR2 RAM with a fanless and silent design and supports DirectX 10. Most places have it for over $25.
Diamond Radeon HD 4870 512MB 256-bit PCI Express 2.0 x16 Video Card for $54.99 Shipped
Diamond A4870PE5512 Radeon HD 4870 512MB 256-bit PCI Express 2.0 x16 Video Card for $54.99 shipped. Here is a screenshot for your reference. It features max resolution of 2560×1600, 750MHz core clock, 900MHz memory clock, DirectX 10.1 support, two DVI outputs, and more.
EVGA GeForce GTX460 SuperClocked 1 GB GDDR5 PCIe 2.0 Video Card for $129.99 Shipped
EVGA GeForce GTX460 SuperClocked 1 GB GDDR5 PCIe 2.0 Video Card for $129.99 shipped after this $30 rebate. Here is a screenshot for your reference. It features 336 CUDA cores, a high speed GDDR5 memory interface with 768 MB onboard, and more. Most places have it for about $150.
EVGA GeForce GT430 1GB DDR3 PCI-Express 2.0 Graphics Card for $29.99 Shipped
EVGA GeForce GT430 1GB DDR3 PCI-Express 2.0 Graphics Card for $29.99 shipped after code 24HRSALE629M and this $20 rebate. Here is a screenshot before the $20 rebate for your reference. It features a 2560 x 1600 max resolution, 650 MHz core clock, ports for dual DVI, mini HDMI 1.4, and more. Most places have it for about $48.
GeForce GTX 560 1024MB GDDR5 PCI-Express 2.0 Graphics Card for $204.99 Shipped
Nvidia eVGA GeForce GTX 560 1024MB GDDR5 PCI-Express 2.0 Graphics Card for $204.99 after this $30 rebate. Here is a screenshot before the $30 rebate for your reference. This video card features 822 MHz core clock chipset, 4000 MHz memory clock, 256 bit memory interface, 1645 MHz Shader Clock, 384 CUDA cores PCI Express 2.0 compatibility, and more. Most places have it for about $219 after a rebate.
EVGA GeForce GTX460 SuperClocked 1 GB GDDR5 PCIe 2.0 Video Card for $119.99 Shipped
EVGA GeForce GTX460 SuperClocked 1 GB GDDR5 PCIe 2.0 Video Card for $119.99 shipped after this $30 rebate. Here is a screenshot for your reference. It features 336 CUDA cores, a high speed GDDR5 memory interface with 768 MB onboard, and more. Most places have it for about $174.
XFX Radeon HD 4850 1GB DDR3 PCI Express 2.0 Video Card for $39.99 Shippped
XFX HD-485X-ZNFC Radeon HD 4850 1GB DDR3 PCI Express 2.0 Video Card for $39.99 shipped after promo code XFXVC517 and this $30 rebate. Here is a screenshot before the $30 rebate for reference. It features a 2560 x 1600 max resolution, supports CrossFireX, and outputs for HDMI, D-Sub, and DVI. Most places have it for about $96.
EVGA SuperClocked GeForce GTX 550 1GB GDDR5 PCI-E 2.0 Video Card for $129.99 Shipped
EVGA SuperClocked GeForce GTX 550 1GB GDDR5 PCI-E 2.0 Video Card for $129.99 after this $25 rebate. Here is a screenshot for your reference. It features 2560 x 1600 max resolution, 981 MHz core clock, ports for DVI and HDMI, SLI support, and more. Most places have it for about $164.