A couple of thoughts I might add in:
~For one, expect that you will have a few extremely busy weeks at certain points in your semester. You may not have two exams scheduled for the same day (or you might– it happened to me a few times), but you could well have one exam, one paper, and one preaching assignment all due on the same day or two.
~The earlier you realize this is the case, the better– so getting the big picture at the start of the semester is crucial. Getting all of my assignments onto a calendar, where you can see where they overlap, was a must for me.
~Don’t underestimate your professors’ willingness to work with you on these things. They want you to succeed, and are concerned for your well-being. I found that, if one professor made an assignment on top of an existing one from another class, he could easily be persuaded to adjust it to better accommodate the students’ schedules. (Of course, you have to be able to know and articulate this to him– so again, a calendar where you’ll realize quickly where the heavy seasons are is helpful.)

For what it’s worth.