Eclipse 2.0.2 Available from Update Manager
You can now update your Eclipse installation to 2.0.2 from within Eclipse. I recieved the following response from the Eclipse newsgroup regarding the lack of an update initially.
If you really can't wait, you can upgrade without losing anything. Just backup your workspace directory and copy it into the new installation. The Eclipse Wiki has more information on manual upgrading.
I also found the Slime UML plugin on the newsgroup. The bad part? It costs money (EUR 30)!