An early start today - what's known in the trade as daft o'clock.
As someone once said, this is not a time for soundbites, but I can feel the hand of history on our shoulders.
Thanks to the Radio Wales gazebo on the green at Westminster, we can't feel the rather cool June weather on our shoulders as Good Morning Wales broadcasts live from its makeshift camp studio.
This is the first time in 17 years that a British Prime Minister has stepped down without an election (I was here then as well when Margaret Thatcher handed over to John Major).
This time it looks as if Tony Blair won't be hanging around as a "back seat driver" to test his successor. He'll quit as an MP if appointed an international envoy to the Middle East.
I've just reviewed the papers on the programme. It's slightly re-assuring to see that very few of them have concrete stories about the shape of Brown's Government - most seem to be as much in the dark as the rest of us who've spent the week badgering contacts to try to pin down the latest speculation.
The Guardian suggests Peter Hain is on his way down and may lose Northern Ireland but keep Wales. We'll see.