Homedepot had Dewalt DWS779 on sale for $399 from original price of $599 for a while. Their website still has it as $540 (http://www.homedepot.com/p/DEWALT-15-Amp-12-in-Sliding-Compound-Miter-Saw-DWS779/206541015?keyword=dws779 ). I stopped by Homedepot today and they marked it down to $300. I used $5 off coupon, so it came out to $315 including tax.
Once again, this is YMMY deal, so please don't hate me.