Has anyone played the arcade game by Sega called Ski Super G? There's a picture of one here: http://segaretro.org/Sega_Ski_Super_G and here is a video of the gameplay http://www.youtube.com/watch?v=8ighhbqQ_Mo .) I discovered one last weekend and loved it. I played for hours, I just couldn't stop!
You go down a race course on the large video screen. This game dates back to the mid-90's so the quality of the graphics is a bit primitive, but the real treat on this thing is the user interface. You stand on "skis" which can both pivot left/right in a horizontal plane, as well as tilt to simulate edging. Of course, the machine can't simulate the centrifugal force you feel when you turn on real skis, so you have to hold yourself up on the "ski poles" when you lean. If you just pivot the skis, you get a sort of skidding turn, and if you tilt your feet, you carve. It's a lot of fun, and after doing it for a while, my legs got really tired!
It has all sorts of little nuances, like the soft snow on the edges of the course, the racer goes "ow!" if you hit a gate, if you go over a jump while turning you'll fall on your butt or tumble, but then you get up and keep going. It also teaches you to make nice round turns into the gates, rather than aiming for the gate and then trying to turn.
If you ever have a chance to use one of these, give it a try, you'll have a blast! The only thing I'm worried about is that if I play it too much I might create muscle memory inappropriate for real skiing, since it's sort of like real skiing, but not quite.
P.S. If you haven't guessed, I can't wait for it to snow!!!