0.5M Network Cable (with Free Targus EcoSmart 15 Laptop Bag worth £40) for £1.55 + £5.99 Delivery @ Insight £7.54
Order ANY item (in this case the cheapest item I could find!) and use promo code CASE04 to receive a free Targus EcoSmart 15 Laptop Bag.
Cheapest bag is available for is £40!
Based on some of the comments looks like they have changed this a bit since last time. You now need to spend £1 ex vat!