iBUYPOWER Gamer Power Core 2 Quad 2.4GHz Desktop PC for $519.99 shipped after coupon code EMCBCCCBD. Its features include an Intel Core 2 Quad Q6600 2.4GHz quad-core processor, 4GB RAM, 320GB Serial ATA hard drive, dual layer DVD burner, NVIDIA GeForce 8400GS 512MB video card, and Windows Vista Home Premium 64-bit.