There is an extention I use to use in firefox that I can't get to work on chrome called video download helper.
It allows you to download videos from quite a number of websites.
I must say the speed on chrome compared to firefox is amazing, while I'll probably miss using webvisum for the occasional captcha is not a huge loss, that thing hasn't been updated for years anyway.
Mercury Reader is pretty neet, especially on these forums.
I'm sure I'll probably discover more addons as I slowly get use to chrome, now If only I could figure out the video download helper.
It's probably something simple.
On firefox it was quite easy to use, right click on any link and the options would be right there.