Can I trace the Call Stack at any particular point without breaking into the debugger?

Yes, there are classes in the framework that will provide you call stack information that you can trace to the output:

[C#]
		public static void TraceCallStack()
		{
			StackTrace st = new StackTrace(1, true);
			StackFrame sf = st.GetFrame(StackTrace.METHODS_TO_SKIP);
			if (sf != null)
			{
				MethodBase mb = sf.GetMethod();
				StringBuilder sb = new StringBuilder();
				sb.Append(mb.ReflectedType.Name);
				sb.Append('.');
				sb.Append(mb.Name);
				sb.Append('(');
				bool first = true;
				foreach (ParameterInfo pi in mb.GetParameters())
				{
					if (!first)
						sb.Append(', ');
					first = false;
					sb.Append(pi.ParameterType.Name);
					sb.Append(' ');
					sb.Append(pi.Name);
				}   
				sb.Append(');');

				int n = StackTrace.METHODS_TO_SKIP+1;
				sf = st.GetFrame(n);
				if (sf != null)
				{
					sb.Append(' called from ');

					do 
					{
						mb = sf.GetMethod();
						sb.Append(mb.ReflectedType.Name);
						sb.Append('.');
						sb.Append(mb.Name);
						sb.Append(':');
						sf = st.GetFrame(++n);
					}
					while (sf != null);
                        
				}

				Trace.WriteLine(sb.ToString());
			}
		}