Go to
www.dell.co.uk, select home and select Shop by E-Value Code from the top-right.
Enter the following code 11111-D07517a
Change the warranty to one year collect and return. Change the hard disk configuration to 1TB (it's the bottom option). Select Logitech Cordless Desktop LX700 option and select the "no mouse" option beneath.
For £816, you get the following kit:
Dell Dimension 5100
3.4GHz P4, 1mb cache
1GB RAM
128mb Radeon X300 SE
2x500GB SATA Hard Disks
DVD-RW
Dell 5650 5.1 Speaker System
Dell 17" Value TFT
Logitech Cordless Desktop LX700
You can pay an extra £57 for the 19" Value TFT if you prefer.
By my reckoning you can sell off the TFT, LX700 and 5650 speaker package on Ebay for a total of £200 (£250 with the 19" option), giving you a near-silent 3.4GHz PC with 1GB RAM and 1TB of storage for £616... This PC uses a BTX mobo so is very, very quiet, plus the graphics card is passively cooled.
Alternatively you could keep the 500GB drives, stick in a £50 SATA drive, flog off the main unit for £400-£450 and basically get the two drives very cheaply. 500GB SATA drives currently retail for about £280 each...
Best hurry if interested as Dell e-value codes change very quickly once misprices are identified.
EDIT: Ooops - perhaps should have posted in the AV Hardware Bargain forum - can any one assist?