@AlexT92,
If you have got everything ready, which was advice by vaikl, then the 2 things that needs to be recorded are,
1. An audio file that consists of your song of choice and your drumming (Be it the Module sounds or DAW Software VSTi such as BFD, Toontrack or Addictive drums)
2. Simply a video of yourself drumming to the audio recording.
Now the interesting part, Video Editing.
Most DAW Softwares have video input capabilities but no all.
for synchronizing videos with audios, if you have a low budget, Windows Movie Maker Really helps for windows 7 users but you should try it out with older versions if you're still using XP or Vista or similar programs on mac computers for Apple users.
If you have cash to spare, you can choose from various video editing software brands like Sony Vegas, Corel, Cyberlink, Adobe and much more but it all comes down to personal preference at the end of the day.
Hope these information helps