£250 OVNO
Here we Have my Dell Precision 690 Workstation for sale with Viewsonic 26 inch screen plus keyboard and mouse ...
Specifications:

CPU: Intel Xeon Quad Core 2.66 GHz

Memory: 8 GB

Hard Drive 1: 1 TB

Hard Drive 2: None

Video: nVidia FX 3500 256MB

Optical Device: DVD/RW

Optical Device 2: CD ROM

USB: 2 Front, 6 Rear

IEEE 1394 Firewire: 1 Front, 1 Rear

Audio: Front and rear speaker/microphone

Operating System: Windows 7 Professional 64 bit

Bluetooth: Yes

WIFI: Mini USB WIFI Adapter

eSATA: 1, rear