Where I think I stand with 100 days left to go...
Run: Call me crazy but this has definitely become my favorite discipline. I don't really have any clue how fast I'm going to be able to go after swimming and riding but I think I could run a 1:30 half marathon if I had to.
Bike: What can I say? I love being on the bike still. The long rides are slightly burdensome because of the "have to" aspect to them. Or as Doug put it, "We're not riding with Marc today. We're riding with Marc's heart rate monitor."
Swim: Today I really think for the first time the stroke and the breathing all came together. I think I finally have a stroke that can get me through. It's all about the drills and the speed now.