Replying to Filming Skiing With A DSLR

Hey, I'm looking into purchasing a camera that i can use to shoot skiing in and around whistler and the surrounding backcountry for the rest of the winter. I have heard a lot about the T2I (550d) and it seems like alot of you on NS have this camera and i just wanted to know what the serious limitations are to shooting skiing specifically and other action sports with this camera. Mainly considering the zoom, and focus etc.

I'm also wondering what lens i would need to get to shoot mainly backcountry lines etc. and maybe a rough price estimate.

If anyone has a rough estimate of what getting completely set up to shoot skiing from scratch with a T2I would cost i would really appreciate that.

And finally if you have any ski edits with the T2I i would really like to see them