This odd-looking gadget from Hawking doesn't pick up alien signals, but it does let you boost any WiFi signal by up to a hard-to-believe 300 percent. The HWU8DD Hi-Gain USB Wireless-G Dish Adapter connects to either a computer or laptop using Wireless-B or Wireless-G network and a USB connection, and uses dish technology and Hawking's Signal Strength LED Indicator to find the strongest and best signal around. You'll also get WEP, WPA, and WPA2 security and a directional antenna that concentrates wireless signals away from computer components to avoid signal interference. And it only costs $69.
Hawking Hi-Gain USB Wireless-G Dish Adapter Bios Magazine