I enabled the HTML option so you can now post videos directly in the topic, though i understand that many have a problem posting pictures even with the buttons being right there in the tab the video post will be a bit more tricky.
you can host videos at sites like
www.tinypic.comor make an account for
www.youtube.com and you can upload videos there 2.
the good thing about those 2 sites is that once you upload the videos the code that you need to put into the topic is already made for you, you can find it under
EMBED. If you have any problems post them here.