Canon 1Ds MKIII Vs. Nikon D3, D300

I've been wondering how Canon's 1Ds MKIII compared to Nikon's recently released D3 and D300 (which I recently bought and love). An interesting comparison can be found here. This photographer's conclusion: "Based on initial impressions of the D300, and now their first full-frame CMOS camera, the D3, Nikon is now back in the IQ game. Canon has enjoyed a deserved reputation for high image quality, especially at high ISO. But now with the D3 Nikon has upped the ante, producing a camera that appears to offer lower noise than Canon (at least against the flagship 1Ds MKIII), and higher available speeds as well."