I think that this page does a better job with Mercury and CUDA details than does the document that you have for lesson 1:
Here's an update for more goodness with Adobe Premiere Pro CS5.5
Here are a few gems from the pages
- A list of all accelerated effects
- A list of all supported graphics cards
- A discussion how mixed media is handled
Be sure to also check out this page on How to make Premiere Pro and After Effects faster.