I have a Canon EOS-1D Mark II. All functions work like new and the body itself has little to no wear and tear on it. At the time of its release, this was Canon's flagship model. I still use this camera almost everyday and it is still fast and produces great image quality. This camera is still better than most when it comes to sports photography, as it shoots 8 fps. I will throw in two 4gb CF cards and one 2gb SD card. Here is a link to all the specs: http://www.dpreview.com/reviews/canoneos1dmkii
Aidin954How do you like the autofocus compared to something like a 5d classic?
Definitely depends on the lens, canon lenses have their autofocus motors inside the lens so it depends on your lens. With my cheap 200$ 75-300mm F4-5.6 it still focuses really fast. So to answer your question it works very well, as it was a top of the line sports camera when it came out.
philipcfor landscape photography/filming skiing would i be better off with a t3i or a 1d mark ii?
Honestly if you're in to filming get the t3i because the 1d mark ii doesn't shoot video. The 1d mark ii shoots really great photos especially for skiing as it shoots 8fps which is better than newer cameras like the 5d mark iii.