Fraps
Fraps can show your frame rate in games! fraps performs video capture, screen capture and can benchmark your fps! supports both directx capture and opengl capture!
http://www.fraps.com/
Game Cam
Game cam in game recording software. game cam captures video while you play, supports both directx capture and opengl, also captures screenshots and much more.
http://www.planetgamecam.com/
Ownage (quality & codecs)
A site dedicated to gaming media and methods of video editing.
http://www.own-age.com/forum/thread.aspx?id=5883&page=1
XviD codecs
XviD codecs
http://www.xvid.org/