Windows Notepad Replacement?
pasbesoin: It doesn't fit your description of "a minimal text editor", but I"ve been happy with the free and well supported ToDoList:http://www.codeproject.com/KB/applications/todolist2.aspxIt supports fairly full featured, hierarchical to do lists.  However, it also has a rich text component for its comments, that supports the features you describe.  I use that component for quickie logs; Control-D inserts a timestamp at the insertion point.Again, I realize it doesn't precisely fit your description, but on the chance you or another reader finds it of interest.