Where on earth do I find a quality computer mic? This is for my movies. I record the voices on the mic and I need a grade A mic to have it sounding perfect!

Any of you pro's know where I could pick one up?

I am using this M-40 TELEX mic right now, its plugged into the Mic jack. And it doesnt do JACK... Then again, it says, "Unable to activate audio drivers" every time I start my comp... dont know how to fix that...

But where could I find a good mic at that just plugs into my comp?
Is there ones that plug into usb drives?

THANKS in advance!