if you're getting into the back country there's alot of preparation that you should do. avalanche awareness is your main priority. you should start off by taking a course for sure and it wouldn't hurt to read a few books as well.
second is you equipment. the necessities are peeps, probe and shovel. before you start any gnar lines, you and your buddies should play hide and seek at night with your transceivers. once you guys get good with that, then explore.
some equipment which i recommend but isn't always needed are alpine trekkers, skins, camel back, head lamp, compass, and radios. if you're really getting off the broken path you'll want crampons, lots of rope, and some other crazy gear that starts to cross the line between backcountry skiing and mountaineering/ice climbing.
before venturing out you should also check your local avalanche conditions bulletin. canada has the Canadian Avalanche Association (avalanche.ca) and i recommend you go there to research this subject further if you are serious. you should keep track of past snow conditions and based on that information you can help predict avalanches better. a general rule of thumb is to keep it within resort for the first 48 hours after a storm. a day or two of consolidation is generally enough to stablize a slope but sometimes a weak layer can present problems weeks and months after falling.
knowledge is your friend and the more you know the better decisions you will be able to make. visit the CAA see what they have to say. in the jungle, a dumb monkey is a dead monkey.