Tables are meant to be used for one thing and one thing only and that is the display of tabular data. Please, do not use tables for layout. It is much better left to CSS. Using tables for layout is a messy hack often used to “get pages to look the same in all browsers”. Unfortunately, it doesn’t always work. Using tables for layout causes issues with accessibility and makes updates labor intensive. It also increases the size of your web pages which increases load time and bandwidth use.
Font definitions should be included in the CSS file so please throw the FONT tags on the trash heap and let’s move on to the 21st century. Using FONT tags also increases the size of your web pages which increases load time and bandwidth use (déjà vu?).