Matt and I were on a UML course this week. Although I have never had any formal OO/UML type training before, I seemed to cope rather well. There seems to be much that is simply clarifing what is involved with a project. There are some good ideas I'll take away from this, and probably use in future projects, but there is also much that will probably fall by the wayside.
One of the Birmingham Perl Mongers is currently doing a book review of the recent(ish) UML book from O'Reilly. I'm intrigued now to hear his thoughts.