99cents for a mic?!
Don't expect anything better out of those than the camera mic. They may even be worse.
If you have a LINE IN you will need a microphone pre-amp, and mic power. I would go visit soundprofessionals.com they probably have something that would work for you. I've never used any of their products so hopefully someone else could suggest something from them.
I'm not a real big fan of Core-Sounds cust. service. I have a set of their mics and they are okay, though.
MIKE B