This program can be downloaded at this address: www.wowmodelviewer.org/
(OBS: It´s important that the program has the same version of your game)
After making the characters and creatures animations, I recorded it with FRAPS. It can be found here: www.fraps.com/
(You must have a pure green or blue screen behind your character before recording your animation).
Than, I logged on WoW and used WoW Machinima Tool for making the free camera movements and angles. You can download it here: www.pxr.dk/
(It also must be on the same version of your game. Just be careful were you´re using it, because you can be banned from some private servers because of it).
After I choose my angles, I recorded the scene with FRAPS.
After the recording. I joined both shoots on Sony Vegas, using the effect Chroma Key
Let your imagination flow!