Where else other than Titles can I get my books? and doI have to buy the books required for 2nd term right now (is it better to wait for boxing day sale)?

There is a lot of really good book-purchasing information on this article.

And do they even list the books for second term courses yet? I can't see any of my term2 specific courses on the course listings page.

Nope, they won't list the info for those courses for some time yet.

Amazon.com and ABEBooks.com are both great resources for getting books if you find the ISBN/SKU # first. Not so helpful for those that aren't listed though.

In a lot of (see: most) cases, the books are a LOT cheaper than if you were to buy them on campus, even WITH shipping & handling.

One thing, however, is to make sure you're getting the right edition as many change.