Adding audio to a video

Hi all, I have this video file which lacks an audio track.
I have the audiotrack on my desktop, what I want to do is add the audiotrack
to that video.

I have tried MPEG streamclip an QT Sync, but to no avail so far.

Does anybody know of a good app to do this?
Thanks....;D

Have you thought about trying to do it in iMovie?
I added and synced a sound recording to a home movie this way and it was very easy.

This iMovie... it's on the Snow Leopard dvd isn't it??

Should be, Yes.

Thanks mate, I'll be trying this tomorrow then, I'm off to my casket in a few...the wife is giving me the look...