What program in University??

I've been taking Computer Science since grade 10, and I just simply love the course (freedom of creating your own program for the summative project, using your head to solve problems etc.)

The problem is though, I don't know which program to go into in University. I'm thinking about going into either computer science, software engineering, or computer engineering.

So I ask you experts, about the differences in each programs, what you learn in each programs, and the career options you have when you complete these programs.

I know I'm asking for a lot, but please bear with me.

P.S. I'm planning to go to University of Waterloo in Canada.

Here is a very simplified diagram of "things around computers" and their implication.

Computer Science
  Theory   <------------ Practice
  Software --|---------- Hardware

Software Engineering
  Theory   ---|--------- Practice
  Software <------------ Hardware

Computer Engineering
Information Technology Engineering
  Theory   --------|---- Practice
  Software -----|------- Hardware

Electrical Engineering
  Theory   --------|---- Practice
  Software ------------> Hardware

Of course you can emphasis one or the other with the courses you take.

If you like a bit of everything (Software, Hardware and Robotic) you might also think about Mechatronic.