One thing that has bugged me for a while is how "Toronto" is mispronounced by non-Torontonians. This is even evident when listening to Canada's national radio station CBC Radio 1. This is likely because most of the radio announcers come from outside Toronto. So, this is how Toronto is pronounced:
Tor 'ronno
Note: the second "t" is silent
emphasis on the second syllable
Sometimes you will hear:
Tar 'ranna
but this is incorrect.