Capturing .mov

i dont know if I asked this here before, something tells me i have… but nevertheless.

I have a video capture card… and it does an o.k. job … but I would like to have it better. would it matter if I captured the video and audio seperatley? and does anyone recommend a program thats very easy to capture, and get very good quality video?

and… can I capture and save as .mov so I can put it up on a site? I think I have quicktime pro, but I cant figure out how to do it!

or can anyone reccomend a good video codec to use??

thanks!!!