http://www.patricksaviation.com/
just found this today. Its a very nice website. search for what ever you want and there is bound to be loads of videos and pictures. very nice indeed!
plus all videos are free to download although you will need VLC media player to view them.
which can be found here.
http://www.videolan.org/vlc/
(dont worry it is not dodgy or anything. it is a great simple little media player that will play practically EVERY kind of file! (even dvd's)