I haven't played with the DxO filters yet, but I believe you'd have a hard time beating Silver Efex Pro 2. Amazingly flexible B&W conversion tool, and it has about a dozen or so film profiles as well. That said, free is good. It does show why some people were fans of a particular film, for sure.
You might need to check your spam folder - that's where I found my code! Also, the software requirement is usually the minimum requirement - so if you have a later version, I think that should be fine.