We still don't know for sure what Nikon has planned for its August 19th press event -- if we did, there wouldn't be much of a reason to have a press event. Whispers, murmurs, and other rabble rousing point to a D3100 digital SLR capable of 1080p video with continuous autofocus -- and now Best Buy is apparently lending credence to such talk. According to Nikon Rumors, SKU 1222817 has popped up in the retailer's database along with the description "Nikon D3100 DSLR w/ 18-55mm v" and a September 18th availability date (no pricing details mentioned by the