Eric, I find myself trying to make the same decision as you-- think I'm leaning towards the DB930 to save a few bucks, and feeling the other differences are not significant enough to justify spending extra $100+-. Warranty is probably largest dicerning factor in this close of a match, yet I have never had trouble with any of my existing Sony gear so I'm not giving it much weight here. Also, please let us know where you found those prices as the best I have seen is $525 for the DB930 and $599 for the ES. Thanks and good luck.