I ordered a set of Shure 425 not too long ago from EK Sound & Equipment for $247 however they quoted me the 315 for ~$170.
It isn't a retail store but a specialty shop so you'll have to do your own research before you get there. The staff were really awesome to deal with and you save ~30% off retail. Highly recommended and an authorized seller as per the shure website.
http://www.eksound.com/