I just ditched Smart YouTube Pro, even though it was a good plugin. The reason why is that now WordPress allows us to embed videos by simply typing the youtube link. This is essentially what Smart YouTube did. The problem was that Smart YouTube had us typing in httpvh:// etc. in order to embed videos. This meant that I had about 300 mentions of httpvh that would not work properly with the new system. So I came across this page which details how to do a mass find and replace in your database. Very handy. I used to it to turn all the instances of httpvh into http and voila, the videos are embedded with WordPress and I could delete my old plugin.