Some Youtube advice
One of my favorite searches on Youtube is to plug in the word "nascar" and then sort the search by date. If you do this starting on Tuesday what you will get are a few handheld shots of that weekend's race. Often you get a nice feel for what it is like sitting in the stands at a race. Watch for my video from Darlington on May 15th.
After watching a couple from Talladega I don't see why anyone would ever bother to attend one of those races. It's just a big pack of cars going by every 45 seconds. Boring.