Dell xps 420 with flat screen (Like NEW) Need to sell ASAP

Like new Dell computer, with a 22 inch screen. Plus a surge protector, and great speakers. I need only the serious to reply to this.
Need to sell by sunday, must be a local sell, NO SCAMS PLEASE!!!! This computer should go for $850.00 at least, but I am willing to go down.
Only had it for a year and a half, and its works great.

DELL XPS 420 Workstation
DELL XPS 420
INTEL Core 2 Quad Core Q9650 3.0 GHz 1333MHz FSB
12 Mb cache
4 Gigs memory 800 Mhz
4 DIMM slots ( 2 x 3 gb installed)
One (1) 500 GB SATA II 7200RPM Hard Drive
20X DVD+/-RW SATA Optical Drive
Windows Vista Home Premium installed. Reinstall disk included.
ATI Radeon 4350 - 512 Mb
One Dual-Link DVI-I connector for high-resolution digital displays
One VGA analog connector
Drive two displays simultaneously with independent resolutions and refresh rates
Does not include optional cable card or cable COA these have always been extra cost items from DELL
Integrated 10/100/1000 ethernet connection
USB - 2 front, 6 back, 2 internal
Front ports: Microphone (1) and Headphone (1), 1394a (1), Optional RCA and S-Video ports with XceleratorTM option
Back ports: S/PDIF, (1 RCA & 1 Optical), 7.1 integrated sound audio I/O (5), DVI, VGA or S-video (Video I/O port depends on the graphics or TV tuner card), 1394a (1), eSATA
PCI: 3 Slots
PCIe x1: 1 Slot
PCIe x8 (Graphics): 1 Slot
PCIe x16 (Graphics): 1 Slot
Dimensions:
H: 17.08" (45.03 cm)
W: 7.04" (18.7cm)
D: 17.7" (45.0 cm)
375 watt power supply
Two 3.5" hard disk drive bays
Two 5.25" bays for optical drives
Additional drives can connect to eSATA, 1394 and/or USB 2.0 ports
Condition is Scsistuff Refurbished
Warranty is 90-Day SCSISTUFF Hardware
Bluetooth Enabled
Multiformat Card Reader
SM, XD, CF/MD, SD/Mini/MMC?RS, MS/RO/DUO