Here is the site I was telling you guys about. In the advanced search, you can search by style (like hard rock, hip-hop, techno, etc.), by Feeling (driving, intense, sad, mystical, etc.), by tempo (slow, medium, fast, etc.) and by instrument. Download options include .mp3's of the whole song, as well, as 60 sec. and 30 sec. clips.
...perfect stuff for creating great videos that can be uploaded to YouTube and other video hosting sites. This keeps you from having to worry about having your videos disabled (or your entire channel disabled as Danny O. told us about) by using copyrighted music.
Create those videos!! Remember: a great holiday present for your mom, dad, grandparents, etc. is a family video created by you, with LOVE!! It could be the best present you've ever given!