Wreless range booster

Is there a simple to use wireless range booster out there that will increase my wifi range to about 500 feet? BTW I'm using an Airport 801.g

thanks

Here's some you can look at. Link

Regards.

You can check out hfield.com they have one called the wi-fire that extends up to 1000ft actually...I use it and i am able to connect to more wireless network hotspots at a strong signal from about 300ft right now..I haven't tried going farther yet but my connection and signal strength is really high so i would imagine this is no joke about going the distance to connect...hope i could help

jay