Hi!
I read (and re-read almost weekly) Going Long by Gordo Byrn and Joe Friel to prepare for IM Arizona (both times).

Also, read gordo's website (www.coachgordo.com) on his 'tips' page. He has an article called Coaching Long-Course Athletes that is awesome. Combining his 'basic week' structure w/the recommendations from Going Long is how I planned out my training.

Another great resource is cruciblefitness.com. There are free article there too and the coach is on the same wavelength as Gordo.

To pare down the advice, suggest you structure an achieveable 'basic week' plan and progressively increase your long workouts so that you can accomplish a long run of 2.5 hour, long ride of 5-6 hrs followed by a 30" run, and a long swim of 4000M. These are your endurance goals, and you want to be able to hit them at least once before IM, but ideally several times (starting in FEB) to prepare. All other workouts are scheduled around the key three.

Good luck!
Laura