http://www.resellerratings.com/store/Sonic_Cameras
Only 2 reviews, but they're both negative.
Many of these cheaply priced places will try to upsell your order, sometimes quoting you extra for items that should be included in the retail box, then when you repeatedly refuse the stock is suddenly unavailable and you're put on indefinite backorder. Some also ship grey market imports rather than from a local distributor.