Easy/cheap short range 802.11a point-to-point bridging?

Archived from groups: alt.internet.wireless (More info?)

First off, thanks to all who've answered my other questions here.

To recap my project - outdoor wireless coverage in a flat place with
very few solid obstructions.

The problem now is it turns out we've got two areas that need
coverage, approximately 1/8 to 1/4 mile apart. We'll plug in to the
internet at one area, stick up an access point or two, and be well
covered in that area. But running cable from one area to an AP in the
other isn't an option.

So, I'm looking at simple ways to link the two areas wirelessly. I'm
thinking something like

internet
|
switch -- 802.11g access point
|
bridge end A
|
(500-1000 foot gap between areas)
|
bridge end B
|
switch -- 802.11g access point
|
802.11g access point

Would a couple of cheap off-the-shelf 802.11a AP/bridges with
directional antennas work? (I figure putting the bridge in the 5.8
GHz spot would be a nice way to avoid stepping on my 2.4 GHz 802.11g
access points.) I guess what I'm looking for is the wireless
equivalent of a really long ethernet cable.

Is there a cheap/easy 802.11a point-to-point bridge package out there?
Would a couple of LinkSys WAP54A's with external antennas work? (Can
you even get external antennas for them?)

The Tsunami QuickBridge 60 seems to fit everything except the "cheap"
requirement (retails for over $2000 and doesn't seem to be in stock
anywhere anyway). It's also got a MUCH longer range than I need.


Suggestions or alternative solutions would be greatly appreciated.