Cross country skiing (for streaming movie wmv click here or Youtube here) is a very good animation of cross country skiing. You can use a roller skis or  cross country skis.  You can get the cross country skiing for 80 L$ if you buy the animation separately. You can also get  the cross country skiing in Powerful movement animation HUD for 1.000 L&. You will get also accessories as sticks, roller skis or skis.