Product Detail The HP Z600 packs eight-core compute and visualization power into a small, quiet package . The "HP Workstation z600 - MT - 1 x Xeon X5550 / 2.66 GHz - RAM 12 GB - HDD 1 x 450 GB - DVD?RW / DVD-RAM - Quadro FX 3800 - 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 X5550 / 2.66 GHz - RAM 12 GB - HDD 1 x 450 GB - DVD?RW / DVD-RAM - Quadro FX 3800 - Gigabit Ethernet - Vista Business 64-bit/XP - Monitor : none - Smart Buy