HP Slimline Desktop, AMD X2 2.7GHz & 4GB/500GB for $349.99 shipped after a $80 rebate.  Here is a screenshot for your reference.  This slim desktop PC features an AMD Dual-Core 7750 X2 processor at 2.7GHz, 4GB RAM, 500GB 7200RPM hard drive, nVidia Geforce 6150 SE, dual-layer DVD burner, Windows Vista Home Premium 64-Bit and more.  Note that this PC is also eligible for a Free Windows 7 Upgrade.  Most places have it for about $409 or more.

Originally posted earlier, this is just a friendly reminder.