I commute from Aurora into the heart of the city. Over 50kms each way on one of the worst bits of congested highway in North America (404/dvp). It's not as nearly bad as you'd imagine... on a bike. If you're smart and experienced with your route mapping, you barely come to a complete stop during peak rush hour times, and it doesn't involve breaking the law. I know Riceburner can attest to that as well as he does a similar route as me. Using the diamond lanes is a life saver. It's very rare this seemingly daunting commute ever becomes a real exhausting chore when doing it on a bike – unless there's a bad accident on one of the highways, and adding a heat wave to that will make it even worse. However, EVERY day in a car on the same route during peak rush hour is a painful chore. I used to commute every day in my car for 5 years, then started taking the train and I felt like I'd wasted a good chunk of my life and frustrations doing it in the cage - felt stupid actually. Completely different experience on a bike.