I often seek out videos on You Tube and other sites as a way to preview and visualize the mountain I am about to climb. I study the route and land marks as well as what the climbers are wearing and what equipment they are using. The imagery helps me prepare my own gear and keeps me psyched in training (and often scares me a bit too). Here are a few I have been watching of late.
King Trench Route (Google Maps animation)
2009 Expedition (Part of the Panamerican Peaks Expedition, summit around the 4:00 minute mark)
This one gives you French practice at the same time (2011 Expedition)