Change text to speech voice mac? Is it possible for me to change the text to speech voice (For example, right clicking any paragraph or text in TextEdit, clicking Speech --> Start Speaking) from the default American version to the UK voice (Daniel Compact, for example)?

I've tried to do this in voiceover but it does not affect the voice for Text to Speech.

Thanks in advance.
Go to System Preferences -> Speech -> Select the "Text to Speech" tab, then choose the voice you want from the "System Voice" drop down. 

On my Lion machine (not sure whether it's the same on Mountain Lion), I had to click "Customize..." from the dropdown then select "Daniel" to download from the "English (United Kingdom)" section.