Any good video-making software that I can use?

It must be free and downloadable on the internet.

It must be free from spyware and viruses.

I would prefer if it could combine 2 or more sounds together in the video. (Windows Movie Maker can only add one sound to the video at the time.) What I'm trying to do is overlap a few sounds together into a video, so if this software could do that, it'll be really good.

Any good video-making software that I can use?pop up blocker

see here

http://www.canadiancontent.net/tech/free...

http://www.bestfreewaredownload.com/free...

http://tv.isg.si/site/?q=node/873