Just my opinion but for a first timer going the mountains, you can read this and that, buy all the latest gear etc, I do alot of tour guiding for beginner mountain riders, and the best way to go about it is go riding with an experienced and knowledgeable friend who knows the mountains, no friend? That's ok look around for a reputable professional guide who does rentals as well, don't go and start throwin money at gear yet, take an avalanche class, try out different beacons to see what works best for you, lots of guide outfits rent avalanche gear aswell, a video can show how a sweet POW turn is done, but it doesn't help you try and cross that creek, show you how to get unstuck, or deal with other backcountry situations that may arise
A good guide will take you to an area that's within your abilties, they can show you tips and tricks for riding and safety, after you have made one trip with a guide, you have a starting point for knowledge on mountain riding that you can build on and you also have been shown an area which you can likely return too. And know that your going somewhere that's not gonna get you in above your head. I'm not sayin fork out big money for a your guide everyweekend but go with a good friend or a guide the first or even second time, just to get you started, my 2 cents