Is there any recording software that will allow me to flash messages of my choice across the screen at custom intervals? I'm recording videos of myself on my macbook pro, using QT player, but I'm willing to consider other options.

More detail, although it might be of help, I'm making videos of myself speaking 10 languages. So I want the first language name, like "SPANISH" to appear when I start the recording, stay a couple seconds and fade. After 1 minute, I want the second language, like "FRENCH" to appear, etc. It would also be nice if I could randomize them. I need to be able to see the language when I record, and I want it to appear in the video too.

My apologies if this is in the wrong place.