People have been posting Nicholas Courtney / Brigadier Lethbridge-Stewart tribute videos like crazy over on YouTube. Here are some of my favorites so far, in no particular order:
1) Clips of the Brigadier being all Brigadier-y (including dialogue), set to New Who background music:
http://www.youtube.com/watch?v=LX1aqFpPiIU 2) Doctor Who Online's tribute, to "Nobody Does It Better":
http://www.youtube.com/watch?v=arUeqQ5LsZw 3) A really nicely put together fanvid to Nickelback's song "Hero":
http://www.youtube.com/watch?v=-S6FMNpNVaM 4) A more action-oriented fanvid to, um, a song I don't recognize. Lots of nice clips, with occasional breaks for dialogue: ETA: the fanvid has been removed and re-uploaded. This time the author shared the name of the song; it's "The Saboteur" by Sabaton. The new url for the fanvid is
http://www.youtube.com/watch?v=6UCYxso6SHc 5) A more reflective fanvid to "The Cave" by Mumford and Sons (okay, I didn't know the song, but I liked it):
http://www.youtube.com/watch?v=P0GSwLdtBI0 6) And finally, I found a clip of Katy Manning telling stories at a party for Nicholas Courtney's 80th birthday. It's not very long, but you can still see what a wonderful person Nick Courtney was, and how well loved he was by those who knew him. So there you go, the greatest ultimate tribute to the Brigadier: Nicholas Courtney.
http://www.youtube.com/watch?v=wQpCrAn5hbk