One thing I discovered with Craigslist is searching for the FX series is funky. Drop the "7" when searching (i.e., Trek .2FX) and also try the search term "Trek FX". I see a lot of 17.5" Trek FX series up there but I need a 20". If your 7.2FX is not the WSD I'd be interested in taking it off your hands. Here's one in the IE:

http://inlandempire.craigslist.org/bik/2438016962.html

BTW, I'd get a 17.5" and save the headaches of buying adjustable stems and/or riser bars to attempt to make a too small bike fit. Long legs + small frame = uncomfortable riding position.