Video content for website

Where can i get video content for my website targeting a niche? Is there a place/website where i can buy videos with full rights for cheap?
Can I use you tube or other sites videos without any copyright or content copying or other legal issues?

You can embed video content from youtube onto your site its fine.

Its only copyright when you download the vid then reupload it and put it onto your site

You can get Video content from fiverr .com. Usage of Youtube or other video's depends on the nature of the video. You need to digg more to see the copyright problems.