First off I am thinking that the bridging AP should have a G enabled radio with in it for speed. Like most things it will only be as fast as it's slowest part, with that being said N would be the better choice but then I would have to upgrade the other location as well - not in the budget.
Doing this will get the lightly moss covered ball rolling again as it will peak interest in the how to & whys department once again. Human nature being what it is often times a situation to solve/tweak/deploy get the learning juices and the desire stepped up a good bit. There is something at hand that can be addressed, something to figure out and get the most out of.
From NoJitter.com:
Avaya bought Nortel for one reason above all others: To capture Nortel's installed customer base. But if Allan Sulkin's on the mark with his first TEQConsult market numbers since the acquisition's closing, it looks like Avaya's going to have a much tougher time holding off Cisco than many might have thought.
Full story:
http://www.nojitter.com/blog/archives/2010/05/cisco_versus_av.html;jsessionid=PT0SWPU3Q0MUXQE1GHPCKH4ATMY32JVN