Creating subtitles with mac?

[captan]

I've translated a movie (simply as a plain text file), but I havn't found any way to get the subtitles onto the video using OSX or OS9. Obvously I need to time the lines and all that - but I recon that's about as much work as I've allready put into translating every line of the film... and I've gotten this far..., I just don't know how exactly. Are there any apps dedicated for this purpose (prefferably free). If there aren't, could someone point me in the right direction so I could just create the subfiles (I think they are plain-text files with a special markup?), manually. *shrug*

So just to clarify: I'm not asking for apps that merge a subfile and a video - I'm asking for apps to CREATE subfiles.

[macbos]

Take a look at Titlelab works great for me

[MacFan]

Another great app is Textation.