Currently Being ModeratedOct 28, 2012 5:05 AM (in response to mschultz)
It is possible to set a default font and size for a table style, in a given document.
If you set up a table with the font and font size you want, then look to the left under Table Styles, you will see one is highlighted. Click on the little triangle to the right of the style name and select "Redefine Style from Table"
Now any table created with that style (in this document) will have your defaults and any changes made in those table should respect those defaults.
You might want to save a copy of the document as a template, to make this style available in new documents.