good computer ??? and where to get parts for it ?? Business Desktop dc7100 Small Form Factor?

iam getting that and i was wondering what would be the hightest price i would bid for that , so far i have $28 and also if it would be good for gaming if i got more ram (2g) and a better graphics card mybe a 256 geforce or something

and other website for good cheap computer parts in Australia and any other good information

thanks you

Brand New HP dc7100 Small Form Factor 40GB DX878AV-LIN PC Desktop

All the benefits of a full size, feature packed desktop highlighted by security, stability, and manageability capabilities are delivered in the HP Compaq Business Desktop dc7100 small form factor. Approximately two-thirds the size of a conventional desktop, yet delivers the high performance you demand.

Specifications

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MPN dx878av-lin

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Key Features

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Form Factor Small Form Factor

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Processor Intel Pentium 4 2.8 GHz

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Chipset Intel 915 G

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Installed Memory 256 MB (DDR SDRAM)

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Operating System Linux

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Recommended Use Corporate Business, Small Business

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Processor Type Intel Pentium 4

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Processor Speed 2.8 GHz

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Processor Manufacturer Intel

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Processor Upgradable

Motherboard

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Bus Speed 800 MHz

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Video Output Interface PCI Express

Memory

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RAM Technology DDR SDRAM

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Installed RAM 256 MB

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Max Supported RAM 4 GB

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Number of Memory Slots 4 x DIMMs

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Supported RAM Speeds 400 MHz

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Installed Cache Memory 1 MB

Technical Features

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Integrated Input/Output Ports USB 2.0 x 8, Serial Port x 1, RJ45 Lan Port x 1, PS/2 Mouse x 1, PS/2 Keyboard x 1 Parallel Port (ECP/EPP/SPP) x 1

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Expansion Bays 1 x 5.25" (External Access) ,1 x 3.5" (Internal Access) ,1 x 3.5" (External Access)

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Expansion Slots PCI Express x16 x 1 , PCI Express x1 x 1 • PCI x 2

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Power Configurations ACPI/APM Power Management ,Wake On LAN Header

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Hyper Thread Technology Ready

Hard Drive

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Hard Drive 40 GB

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Hard Drive Interface Serial ATA

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Hard Drive Rotation Speed 7,200 RPM

CD / DVD

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Optical Drive CD-ROM

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Optical Drive Read Speed 48x (CD)

Audio / Video

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Graphic Processor Intel Extreme Graphic 2

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Video Out Ports 15 Pin D-Sub VGA port x 1

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Audio Input Microphone Jack ,1 x Line In

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Audio Output Type Sound Card, Headphones, Line out

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Integrated Audio AC97 Audio Codec

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Max. Video Resolution 2048 x 1536

Networking

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Networking Type Integrated 10/100/1000 Network Card

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Data Link Protocol Ethernet • Fast Ethernet • Gigabit Ethernet

OS Certified

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Linux ,Microsoft Windows XP Home Edition , Microsoft Windows XP Professional