The Wireless-G USB Network Adapter with RangeBooster is the simple way to add or upgrade wireless connectivity in your desktop or notebook computer. Simply Plug & Play. £12.10 plus £2.49 p&p
£30 approx in most places. Linksys (Cisco) top quality product. Comes with 2m USB cable for ideal positioning of the adapter. I prefer the desktop type adapters to the dongle type. It's about the size of a cigarette box and comes with velcro sticky pads should you need to attach it to anything like a wall.
If you don't want to order online then only 38p more (£14.97) for instore pickup at PC World.http://www.pcworld.co.uk/martprd/product/seo/637715
If you want a cheap brand for a tenner or less then find something different. This post is for those that want a quality brand and product with the ability to position it away from the PC's USB port.
Compare: Novatech £27.82 Play £31.99 eBuyer £27.92