In cased you missed it...
http://www.mensracing.com/athletes/interviews/2006/hendrickramaala102706.htm
Interesting that a guy of his caliber, is very modest in his training. Seems like his saves his best for races...
MR: Can you tell me specifically what you are doing in your workouts?
HR: I do 1K repeats. I manage under 2:50 [per rep.]. I don’t go all out. I try not to go all out in my training to save myself for the next day. I rest enough. I eat well. The marathon is not just [about] the training, it’s everything. I am doing the long run. The long run is the most important part of the training.
MR: When you do your 1K repeats, how much rest do you take between repetitions?
HR: 3 minutes.
MR: What is the most number of repetitions that you have done of these 1K repeats?
HR: I am up to six repetitions at the moment.