[Software] Rosetta Stone

Rosetta Stone
Immersion-type program. No instructions in English (none needed). You are presented with four [pictures, spoken sentences, written sentences] at a time, and you have to match the current [spoken sentence, written sentence, picture], and all combinations thereof. Extremely simple to pick up. Vocabulary builds logically, and you are often introduced to new words and concepts well before they become critical. Rosetta Stone is expensive, but the company is really decent. When I updated my computer (and the old Rosetta Stone program didn't work anymore), I sent them an e-mail and they sent me (at their expense) an updated CD. How cool is that?