how much should an old Cannondale SR400 cost?

I found this one at CL: http://washingtondc.craigslist.org/d...293783887.html

looks like it's in good condition, but the price of $325 seems a bit high! any advice?

I am looking for a ride around town/weekend road ride bike. So i want light, quick and not too expensive! I've heard some people hated the SR400 though. any opinions??

thanks!