PROGRAMMING : UML Diagrams

I'll admit I'm not really a fan of the whole Rational Rose thing, but having a common vocabulary is useful. Martin Fowler has just pointed out UMLGraph, a text based definition of UML Diagrams. Makes it easy to CVS, and you don't have to worry so much about layout, since you can't do any :)
I might give it a go because I am currently supposed to be documenting the system before I leave.