The BBC obituary of Vaclav Havel can be found here.
John Simpson, the BBC's World Affairs Editor, speaks about his own meeting with and knowledge of Vaclav Havel here. This interview comes much closer to communicating what made Vaclav Havel tick than does the obituary. Lord Owen reflects on his life here.
I have cited Vaclav Havel a number of times in blog posts: go here to find those posts which refer to him, or cite his writings.
As John Simpson says in his interview, I too hope that Vaclav Havel's death will encourage people to go back to his writings in order to discover one of the most significant figures of our times.
UPDATE: See further comment here.