There is a new player in the text-to-speech market, which could be very interesting on three counts.
1) The prices are very good - British English for $75
2) They have Polish and Romanian voices as well as British and America.
3) They have a demo video on the front pages that uses an avatar which just has to be seen to be believed. I am not sure how they sync it, but if it is done automatically, it offers a taste of what is just around the corner.
There are also other goodies tuck away, such as creating sound files for presentations.