Just thought I'd share some links to websites I found recently that contain many good military aviation videos:
Some current personal favorites:
http://www.pkbase.com/download/files/Mirage%202000_Maroc%202003.MPG - French Mirage 2000 pilots having a close look at the Morrocan desert
http://www.pkbase.com/download/files/123%20FS%20Archer%20Video.mpeg - Oregon ANG (and other) F-15 pilots having fun with QF-4s (RIP Phantoms)
Feel free to add more links to this thread!