Inwin Z583T Chassis with 350w Power Supply Intel D31PR Motherboard     -Intel GMA X4500 Based Graphics     -10/100/1000 Ethernet     -6 Channel     -PCI Express x16 Slot     -2 PCI Slots Western Digital 160GB Serial ATA 7200rpm Hard Drive 2GB PC6400 Memory 24x Dual Layer DVD-RW Drive Microsoft Windows 7 Home Premium Availability: Usually ships the next business day. SYSHOM$469.00 CPU: Celeron Dual Core E3200Pentium Dual Core E5300 (+23.00)Pentium Dual Core E6300 (+39.50)Pentium Dual Core E6500 (+46.00)Core 2 Duo E7500 (+76.00)Core 2 Duo E8400 (+129.50)Core 2 Duo E8500 (+155.50) Memory: 2GB PC64004GB PC6400 (2x2GB) (+44.00) Hard Drive: Western Digital 160GB SATAWestern Digital 320GB SATA (+6.00)Western Digital 500GB SATA (+13.00) Operating System: Microsoft Windows 7 Home Premium 64-bitMicrosoft XP Home (-21.50)Microsoft Windows XP Professional (+34.50)Microsoft Windows 7 Professional 64-bit (+37.50)Microsoft Windows 7 Ultimate 64-bit (+84.50)No Operating System (-114.50) Office Suite: NoneMicrosoft Office 60day TrialMicrosoft Office 2007 Basic (+179.00)Microsoft Office 2007 SBE (+249.00)Microsoft Office 2007 Professional (+335.00) Please e-mail or call for a price on any item not listed here. Most items that are not in stock are normally available for pickup/shipping within one business day.