Not usually a fan of posting complete PC packages, but the following seemed better value than other machines previously posted. Still wont beat a DIY PC, but for those without the time/know how this isnt bad.
Windows Vista Home Premium
Intel® Core 2 Quad Q6600 Processor (2.40GHz ,8MB L2 Cache, 1066MHz)
250GB Hard Drive (16MB buffer)
256MB nVIDIA Geforce 8500GT (Dx10)
19" Widescreen TFT LCD
LightScribe Super Format 18x DVD Writer
1 Year Onsite Warranty (Home Service)
FREE Delivery* ( Worth £40 )
Also available for £ 610.87 (inc VAT) without the LCD.