Youtube Auto Comment Rater

Does anyone know if there's a free one out there? I've been searching for like an hour without any success.

If there isn't a free one, what's the cheapest solution? I'd really like to thumb up my own comments.

The cheapest solution is, doing it yourself with imacros.
It is possible, and easy with a little bit Visual Basic, and the imacro script edition.

Unfortunately, I'm not going to make it public here, as it would just raise competition.
When I'm done with commenting, I will share it.