Card advice. Capture and Sound

I figured that I might aswell make this into one topic instead of making a topic for both.

I have been gradually updating my pc, slowly but surely, and the last two components that I'm wanting to get are a sound card and a capture card. The sound card is fairly obvious and primarily the capture card is going to be used to capture game cutscenes so I'm wanting them to be good quality.

What are some cards that people would recommend or what factors do I need to bear in mind before buying?

Thanks in advance