It's getting to the point you can't even do that.
Adsense is starting to say: "If you didn't create it all yourself, you can post it, sure; but don't expect us to monetize it".
Thanks very much for all your replies. You are really going out of your way (time wise) to spread information.
I can create great visuals (stop motion, fancy video editing etc), my downfall is audio. Until recently, that was no problem, with the plethora of royalty free music available. I could upload my videos without music, but I fear they would lose a lot of their appeal. So, following your advice, I will probably look into creating original music for my videos. It will take time, but I think it'll be worth it.
Thanks again for your help.