I'm sure I can do this for you, but need a bit more info please.
How many Powerpoint slides? How long do you want the video to be? Will you supply the music or do you want it composed, performed and recorded? (and that would really cost you!).
I have a video/music production studio and can do all this, but my bid will depend on your responses. my current bid is nominal only until I get more details.
Message me!
Cheers
Sid (Australia)