Nothin special at all, just some foil and card board :D
Behind me about 30-40ft away through 3 walls is my WET54G getting 100% signal. The foil help block the signal from going behind it and push the signal stronger towards the camera.
Image Here
It looks kinda tacky back there but it is mostly hidden and every ounce of strength i can get out of my wireless is great because i use
GameShark Media Player on my PS2 to play movies and MP3 to my HDTV and sound system. My PS2 connects wirelessly to my PC and my PC create shared directories in which my PS2 can access and play them on my TV. I have lots of bandwidth travling through my wireless network.
This will help out alot for my X3i when i get it.