Gateway Desktop PC, Phenom X4 Quad-Core CPU, 4GB/640GB for $339.99 shipped. Here is a screenshot for your reference. Take another $10 off by using PayPal for a total of $329.99 shipped. It features an AMD Phenom X4 quad-core CPU, 4GB RAM, 640GB drive, DVD burner, Gigabit Ethernet, Windows Vista Premium 64-bit with SP1, and more. Note that this Gateway PC is also eligible for Free Windows 7 Upgrade. Most places have it for over $400.