Categories In Databases

Hey

I have some categories in my Database.
For Example some Countries.

ID 1 NAME England
ID 2 NAME France
ID 3 NAME Spain

If I want to translate these categories into other languages, is it useful to save the categories in english (My sourceLanguage) like in my example or is it better to save just keys for the names?

Are there any good tutorials about internalization? I've read "Agile Web Application Development" and the "YII Cookbook" but the explanations are sparse :-(

Thx!