Quote Originally Posted by Gollo
Or go cheaper and get two linksys wap11's set in bridge mode and get two directional antennas and you have the same setup. 800 yards is easy. I've read about links of 5+miles. All's you need is LOS (line of site). Anyways run over to the Netstumbler forums and search around (sign up and you'll get the full list of forum topics). You'll see several people have asked the same question and have all gotten different solutions. One word of advise though: search first or you'll get flames Cheers.
Thanks Gollo thats an awesome forum they have a ton of stuff.