Minolta make a fine camera, but their lenses are not so hot, and thats what makes your picture. I don't think you will need 1/8000s for the photography your talking about. I have a Canon Elan 7e and sleep with it under my pillow, it has 1/4000 shutter speed, which is more then enough for what your looking for, and its near pro quality.
The N80 has spot metering which is a plus, but if your doing sports photography, a fast frames per second will prolly benefit you more. The Elan 7 does 4 per sec. and the N80 does 2.5 i think. The N80 might save you a couple bucks though.
Both are great cameras and they will both serve you well.
Best advice though if taking pics in the snow, meter your light off the subject instead of trying to average the light (which is what your camera meter will automatically do unless you override it) You don't want the light from the snow fooling your camera into thinking the subject is brighter then they are.