This Router

Newegg has the Linksys WUSB54GS Wireless G Network Adapter for $30 - $8 off with coupon code “EMCYNYS29” (Expires 2/11) + $3 shipping = $25 shipped. It supports SpeedBooster technology with compatible wireless routers.

Product description from Newegg:

Model Brand LINKSYS Model WUSB54G Spec Standards IEEE 802.11b/g Wireless Data Rates Up to 54Mbps Security WEP Encryption, WPA Security, CCX 2.0 WPA/WPA2 No Interface USB 1.1/2.0 Frequency Band 2.4GHz Channels 802.11b / 802.11g
11 Channels (US, Canada)
13 Channels (Europe)
14 Channels (Japan) Modulation CCK, OFDM Transmitted Power 16+/-1dBm (Typical)@11Mbps CCK,
14+/-1dBm (Typical)@54Mbps OFDM Antenna 2dBi System Requirements PC with 400MHz or Faster Processor:
128MB RAM Memory
CD-ROM Drive
Available USB Port
Windows 98SE, Me, 2000 or XP with
Service Pack 1 (or later) Dimensions 3.6″ x 2.8″ x 0.9″ Weight 0.2lbs Temperature 0??C - 40??C (32??F - 104??F) Humidity 10% - 85%, Non-Condensing Windows Vista Certified for Windows Vista Feature Features Compatible with 802.11g and 802.11b (2.4GHz) Standards
Supports USB 2.0 with up to 54Mbps, High-Speed
Data Transfer Rate with Automatic Fallback
Plug-and-Play!
Operati
on Provides Easy Setup
Compatible with Microsoft Windows 98SE, Me, 2000, and XP Packaging Package Contents WUSB54G
Resource Disk
USB Cable
User Manual

CircuitCity.com has the Linksys WRT54GS Wireless-G Enhanced Broadband Router W/ SpeedBooster for only $29.96 + Free In-Store Pickup.

Product description from CircuitCity.com:

Linksys 802.11g Wireless Router with SpeedBooster

Product link.