Traveling to Sudbury from Toronto. Please help me with any important information?

Hello, I am going to travel to sudbury from toronto. I will arrive at Toronto Pearson International Airport on April third, 2009 about 6:30pm. I need to travel to sudbury, but by plane is not an option because the price is to high for me. I�d like to travel by bus or train, but i dont have any idea about what to do. Please, i need any information, I will be grateful if you could help me on this. What are the best way you recommend me to travel? What are the steps i am supposed to follow? I am from Venezuela and my English is not very good. Thank you very much!!!!!