Dell Dimension 4700C Desktop PC

Hi,
I am selling my Dell Dimension 4700C. I will be going to Art school and will need a MAC.
I have made a few changes to it since I have bought it. I now have Windows Vista upgrade on it (but this can be taken off if you prefer XP) I have bought a new power supply and a brand new gaming graphics card. Also, it now has 120GB of Ram.
Still works fast and everything!
Part Number:D47CL1 General
Built-in Devices LED indicators Width 3.8 in Depth 14.0 in Height 12.7 in Weight 16.4 lbs Color Black Processor
Type Intel Pentium 4 2.8 GHz Mainboard
Chipset type Intel 915G RAM
Installed Size 256.0 MB / 2.0 GB (max) Technology DDR SDRAM Upgrade rule (RAM) Max 2 x 1 GB module Storage
Floppy drive type None Hard Drive 40.0 GB - Standard Hard Drive (2nd) None x Optical Storage
Type CD-ROM CD / DVD read speed 40 x (CD) / 12x (DVD) CD / DVD write speed 24x CD / DVD rewrite speed 10x Storage Removable
Type None Monitor
Monitor Type Flat panel display - TFT active matrix Diagonal Size 17.0 in Viewable Size 16.0 in Graphics Controller
Graphics Processor / Vendor Intel GMA 900 Max Monitors Supported 1.0 Audio Output
Type Sound card - Integrated Speaker(s) 2.0 x None Input Device
Type Dell USB 2-button scroll mouse Telecom
Modem Fax / modem Networking
Networking Network adapter Expansion / Connectivity
Expansion Bays Total (Free) 1.0 External - 5.25 in Interfaces 1.0 x Graphics - USB , 1.0 x Serial , 1.0 x Headphones , 1.0 x Serial ATA , 7.0 x USB Power
Operational power consumption 160.0 Watt Operating System / Software
OS Provided Microsoft Windows XP Home Edition Software