eBay.
There's a couple of deals on there right now but you may see more if you check back regularly. (Some resellers also list them at full retail price you would pay elsewhere.)
Look *HERE* >>>
http://www.ebay.com/sch/i.html?_from=R40&_trksid=p2050601.m570.l1313.TR0.T RC0.H0.X%22clarity+aloft%22+aviation+headset.TRS0& _nkw=%22clarity+aloft%22+aviation+headset&_sacat=0