Not often you find a bargain at PC world but they have these in for £9.99 (be quick!):

NETGEAR WG511 802.11b/802.11g 54g Wireless PC Card

This versatile PC card works with wireless standards 802.11b or 802.11g, to keep you connected today and tomorrow. Put it in your notebook PC and no matter where you are, at home, at the office, at the airport or in other public access areas, this versatile adapter automatically selects the best connection available, giving you constant access to corporate resources, e-mail, and the Internet. Use it to quickly network employees, saving the time and expense of Ethernet cabling.

Easy to set up and use, it auto-selects the best available connection and adapts the settings to match. It also provides up to 2x the range of 802.11b networks.

NETGEAR's intuitive Install Wizard makes driver installation a cinch. And with up to 128-bit WEP encryption, you can rest assured that your wireless network communications are private.

Features:

• Works with both existing IEEE 802.11b and new 802.11g (both 2.4 GHz)
• Speeds of up to 54 Mbps
• Office roaming for notebook PC users
• Shared broadband Internet access and resources
• Wireless LAN Manager for location-specific profiles
• 128-bit WEP encryption

Specifications:

• Radio Data Rate: 802.11b/g - 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, & 54 Mbps
• Modulation Type: OFDM with BPSK, QPSK, 16QAM, 64QAM, DBPSK, DQPSK, CCK
• Operating Frequency: 802.11b/g - 2.4 - 2.5 GHz
• Bus Interface: 32-bit CardBus
• Encryption: 802.11b/g - 64-bit (also known as 40-bit), 128-bit WEP data encryption

Package Contents:

• WG511 802.11b/g Wireless PC Card
• Resource CD
• Installation Guide
• Warranty / support information card