ATI will have one more R600 based card, again with 512 MB of GDDR3 memory. It also has dual DVI and TV out option. It is a nine inch card with a dual slot cooler.
This one will need only one PCIe 2x3 pin power connector and its maximum power should not exceed 180W.
By R600 standards that is a cold card, but for rest of the world this is still way too much. We don't know the clocks for this card, but we know it will be cheaper and clocked slower than the Radeon HD 2900 XT, and it will arrive later.