Startup Weekend is coming to Toronto Sept 24-26, 2010. These events are gaining tons of momentum in cities all over the world and Toronto is next.
Checkout http://toronto.startupweekend.org and http://startupweekend.org for more detailed information.
The Toronto event needs UI and UX professionals to come out and share their specilized skills to help build some amazing stuff.
Let me know if you have any questions and I hope to see you at the event.