Dixons have the following online web discounts until end of May 2006:
Spend over £250 - you get £20 Discount - Code - ONLINE20
Spend over £500 - you get £40 Discount - Code - ONLINE40
Spend over £1500 - you get £100 Discount - Code - ONLINE100
Spend over £2000 - you get £150 Discount - Code - ONLINE150