Saw this in the morning ad. It's not screaming hardware by any stretch of the imagination, but the price is hard to beat for a basic build:
Sempron 140 w/ MSI K9N6PGM2-V2 motherboard for $40-$10MIR = $30
Sempron specs:
2.7 GHz
AM3
45W TDP
1MB L2 cache
Motherboard specs:
2x240 DDR2, 800/667MHz
1x PCIe x16, 2x PCI, 1xPCIex1
2xSATA 3Gbps, 1xIDE (2 devices)
4xUSB rear, 4x front
8-channel audio
Sempron 140 w/ MSI K9N6PGM2-V2 motherboard for $40-$10MIR = $30
Sempron specs:
2.7 GHz
AM3
45W TDP
1MB L2 cache
Motherboard specs:
2x240 DDR2, 800/667MHz
1x PCIe x16, 2x PCI, 1xPCIex1
2xSATA 3Gbps, 1xIDE (2 devices)
4xUSB rear, 4x front
8-channel audio