I've been using www.wherecaniski.com to plan all of my holidays. I'm a beginner snowboarder so need to know if the conditions are going to be good. I live in Geneva so I'm pretty much surrounded by mountains but this site also helps me figure out where my nearest resorts are. It's a good place to start your search. :) Just type in a resort name and it will inform you of the conditions over the period of your trip and I find it leads to useful sites for accomodation. It's really easy even my Granny could use it!