Good find. It sounds somewhat robotic but if that's your only option it is not bad at all for a free solution that supports many languages!
I will probably also be releasing a plugin that lets you use Microsoft TTS engines from their speech platform 11.
The following languages should be supported I think (sorry no Afrikaans):
Catalan - Spain
Danish - Denmark
German - Germany
English - Australia
English - Canada
English - Great Britain
English - Indian
English - United States
Spanish - Spain
Spanish - Mexico
Finnish - Finland
French - Canada
French - France
Italian - Italy
Japanese - Japan
Korean - Korea
Norwegian - Norway
Dutch - Netherlands
Polish - Poland
Portuguese - Brazil
Portuguese - Portugal
Russian - Russia
Swedish - Sweden
Chinese - China
Chinese - Hong Kong
Chinese - Taiwan
I may also be releasing a variation of VC that uses a different speech engine supporting any of these languages (but with some important differences from the current engine).