Multilingual Content Management Systems?

Azraael asks: "I need to make a website for a small business. The website must be available in several different languages and allow for easy switching between the different versions (with little flags in each page that has multiple versions, or some scheme of the sort). User logins are not required. I was thinking of using a CMS to accomplish this in an efficient and easily extensible (more languages, more pages, etc) way. What would be the best option? I've tried Wordpress but it seems to lack multilingual support of the type I described, while having too much of a weblog feel. Mambo with Mambel seems spotty at best. Has anyone on Slashdot done this before?"