I really like training peaks for that personally. I could also do it through movescount (suunto's program), but I've always liked training peaks more. I've never tried here though. I didn't like how I had to manually upload each file so I never really tried too hard to figure it out.
Using a high-volume schedule for many months is not the best tactic. Build speed and skill several months out, and then transition to a high-volume IM plan.