Perhaps the most breathtaking part of climbing Half Dome via the cables isn’t the steep climb up, but the wonderful views you get climbing down. Here’s a great video of the trip down the cables from STRYKER662 on YouTube.
If you’re interested, here’s Stryker’s unedited video of the climb up the cables. It gives you a pretty good idea what you’ve got in store for you if you’re planning on making the hike sometime this summer. It is one steep climb.