Ive never been to Seneca, in fact I only did a summer semester on Hamilton (CIC), all I can give you is advice on the airport pickup thing....
Number one thing you want to know is whether your school will be picking up new students at the airport (some schools do, others don't), in my case Columbia Intl College (CIC) did have such a service, the problem was my flight from Dallas to Toronto was delayed 2 hours so by the time we arrived the bus was long gone.
If this happens to you you will need to find a Taxi, which are not cheap, luckily for us we were 5 Mexican students, so the cost came down to 20 Canadian Dollars per person (The Taxi charged 100 CD from the airport to our residence).
So I hope you are traveling with other students or friends, as I would rather pay the 100 CD for the cab that travel with unknown people (but hey that's just me being a little bit paranoid
).
I wish I could help more but I only stayed 3 months on Canada (and looking to comeback for a Masters and PR)
But if there is anything I can help you with just ask, and above all good luck!!
