I am going to go to the snowboard worldcup that is happening in my town next week and I would like some tips to shoot it. Ive got a XSI with the F/3.5-5.6 18-55mm and F/3.5-5.6 55-250mm. The contest is a big air and another is the stair masters (rails ) Big Air — Snowboard Jamboree 2009 (Stoneham, Québec) The Stairsmasters — Snowboard Jamboree 2009 (Stoneham, Québec)
theres quite a few snowboard threads on here with suggestions on how to improve on shots, i suggest you do a quick search
Get there early to test camera settings and get a good spot. Meterring will be an issue as there will be lots of whites (snow, potentially sky,...)