How do i make a composite video of a talking head plus powerpoint slide?

[johnbaldry99]

Hi

I want to make a video of a talking head on a subject with a background showing a related powerpoint slide
(or a gif)
How do i do this ?
I have some idea the talking head should be shot on a solid colour background which can be removed and replaced with the slide
But i have no idea what software does all this

I can shoot the talking head myself and create the power point myself
But what would the final video producer need for software to do all this?
I would like it to be finalised in flash for uploading to youtube

Any suggestions welcome

Thanks
Arthur

[poisondeathray]

Basically any editor which can color key will be able to do that easily.

e.g. you could use premiere pro , vegas pro, or after effects