MSI Radeon HD 4550 1GB 64-bit GDDR3 PCIe Video Card $20.99
NewEgg.com has the MSI R4550-MD1GH Radeon HD 4550 1GB 64-bit GDDR3 PCI Express 2.0 x16 HDCP Ready CrossFireX Support Low Profile Ready Video Card for $20.99 after $25 rebate with Free Shipping.
