Sale on this today. Reg price is $50.
Newegg.com - LINKSYS WMP54G IEEE 802.11b/g, PCI 2.2 and 2.3 32bit PCI2.2 Wireless-G Adapter Up to 54Mbps Wireless Data Rates WEP, WPA, CCX 2.0 - Wireless Adapters
Brand LINKSYS
Model WMP54G
Spec
Standards IEEE 802.11b/g, PCI 2.2 and 2.3
Wireless Data Rates Up to 54Mbps
Security WEP, WPA, CCX 2.0
WPA/WPA2 WPA
Interface 32bit PCI2.2
Frequency Band 2.4GHz
Modulation 802.11b: CCK (11 Mbps), DQPSK (2 Mbps), DBPSK (1 Mbps)
802.11g: OFDM
LEDs Act
Transmitted Power 15dBm
Antenna External Antenna
System Requirements 500MHz or Faster Processor
128 MB of RAM
Available PCI Slot
CD-ROM Drive
Windows 98SE, Me, 2000, or XP with Service Pack 1 (or later)
Dimensions 8.3" x 6.3"x 0.8"
Weight 0.2 lbs.
Temperature 0°C - 65°C (32°F - 149°F)
Humidity 0% - 95%, Non-Condensing
Windows Vista Certified for Windows Vista
Feature
Features Operates in the 2.4GHz frequency spectrum with throughput of up to 54 Mbps
Complies with IEEE 802.11g draft standards, and backwards compatible with IEEE 802.11b products
Supports up to 128-bit WEP encryption and WPA security
Compatible with Windows 98SE, Millennium, 2000 and XP
Packaging
Package Contents WMP54G
Quick Installation Guide
Resource Disk
LINKSYS WMP54G PCI2.2 Wireless-G Adapte $19.99 at newegg 
