Product Detail Manufactured to the Highest Quality Available. With True Enhanced Performance. Latest Technical Development. . The "HP Workstation z600 - MT - 1 x Xeon E5540 / 2.53 GHz - RAM 6 GB - HDD 1 x 300 GB - DVD?RW / DVD-RAM - Quadro FX 580 - Gigabit Ethernet - Vista Business 64-bit/XP - Monitor : none - Smart Buy" is best product for you. We recommended HP Workstation z600 - MT - 1 x Xeon E5540 / 2.53 GHz - RAM 6 GB - HDD 1 x 300 GB - DVD?RW / DVD-RAM - Quadro FX 580 - Gigabit Ethernet - Vista Business 64-bit/XP - Monitor : none - Smart Buy