U of Toronto College system??

<p>Can someone explain to me the college system for the faculty of arts and sciences at UofToronto st. George? Like I know that upon applying to arts and sci, undergrads get to pick rank which of the 7 colleges they want to join.</p>

<p>However, i've also heard/read that I can take the same courses no matter what college I'm at. Does that mean that if I take a course that's not offered by my college (each colleges offers a set of courses/programs in the faculty of arts/sci), I'd have to commute to another college everyday? Or are all the classes held in the main campus so that no matter what college I'm in I'd have to go to the main campus?</p>

<p>Or are the 7 "colleges" simply residences? </p>

<p>Sigh...any help is appreciated. Merry Christmas!</p>