As long expected and rumored. Nikon just announced the new D3 and D300. Together with the Canon announcement of the 1Ds Mark III and 40D just a few days ago, the battle for DSLR between Canon and Nikon is really heating up. It is a really exciting time for all DSLR users. With the heated competition, it can only be good for all of us. They will drive each others to make better and cheaper cameras for all of us eventually.