Hi,
I don't know if anybody here has discussed this before, but I found this great site, , to practice pronouciation. First thing, its free and the second thing, the application provided by the site is ultimate. It is so useful and easy that I can't ask for more. By the way, I am not advertising for the site. It is my opinion.
They have numerous videos (along with text) you can choose from. You can repeat sentences along with a video. The best part is the application analyzes your prounciation and grades it between perfect to fail. You can keep recording over and over until your pronounciation matches that in the video.
http://www.englishcentral.com/en/videosHope you guys find it useful.
MG.