Debugger for C programming?

[mdevin@ozemail.com.au]

Is there a good debugger for C programming.  You know, the kind of thing
that lets you step through a line at a time running your program and put
watches on variables etc.

I am doing an assignment for Uni, and have been just adding printf
statements in my code to check variable values etc.  But others who are
using a Micro$oft compiler say they have the benefit of being able to
step through a line at a time.

Now I know that Linux rules for C programming, so what do all you
programmers use to debug your code?

Thanks.
Mark.