Hawking HAI15sc Hi-Gain Antenna $29.99 after $10 rebate + $8.95 shipping
Dell also has the same price but they are out of stock

This helps boost signal range for your wireless router.

Model
Brand HAWKING
Model HAI15SC
Spec
Type Antenna
Specifications Network Specification: IEEE 802.11b, IEEE 802.11g, Wireless 2.4 GHz Network
Operating Frequency: 2.4 ~ 2.4835GHz

Electrical Properties
Gain: 15 dBi
Polarization: Vertical
Impedance: 50 Ohms nominal
SWR Less than: 1.6

Connector: Reverse SMA Plug
Connector Adapters: Reverse TNC Plug, MCX Plug
Cable: HPT-100, Length 5ft

Mounting:
Corner Wall Mount Kit
Wall Mount, Table Mount, Floor Mount

Systems Requirement:
One Wireless Device with an external Antenna connector
Connector type: Reverse SMA Jack or Reverse TNC (Linksys, Cisco devices); MCX Connector (Apple Airport Extreme)
Features
Features 2.4 GHz Frequency
Multiple Connectors included
15dBi External Antenna
Supports all network operating systems
Designed for corner mounting
Manufacturer Warranty
Parts 1 year limited
Labor 1 year limited

Review from Newegg.com:
" Achieves a strong reliable signal. My setup includes a 5 foot USB cable extension and and seven foot antena cable extension (both of which attenuate the signal), a hawking wireless-G USB adapter and a linksys SRX200 router (54 Mbps). The distance is over 100 feet in a separate building with some obstruction from plaster and brick walls. It provides an average of 36 Mbps (varies from 24 to 48 Mbps) without any disconnects. "

Linkee

Great deal. In for one.

I haven't had any success with these hi-gain antennas.

I had an older Hawking Technology high gain and it was amazing how much signal I could bring up with it. I would certainly give this a try.

pooplip said:My setup includes a 5 foot USB cable extension and and seven foot antena cable extension (both of which attenuate the signal)

Nitpicking I know, but the USB extension does not attenuate the wireless signal.