Sound Card Features

I would like to purchase a sound card to copy songs from vinyl albums to cd’s. I run Win 2000 Pro. I do not play games on my pc.

I THINK I need:
1) stereo line inputs
2) software to mark the end of each song where I decide
3) software to filter noise ( e.g. scratches & hiss )

What are the technical features I need for the above ???
Since I’m buying a new card, what else should I look for ???

Thanks, John