my birthday is coming up soon (june 25), and there's a few parts for my custom PC I'm considering getting, but I have some questions

1: will a good sound card give enhanced audio output to not only the speakers but to, say, a USB headset or regular headphones?

2: I have an older graphics card from an old Dell PC, and I'd like to add it alongside my current card for more monitor outputs. would this work? or would there be performance issues?

3: what are some good gaming cases? I like ones with blue LED's, so I bought my current one without thinking of other aspects, and it sucks.

Edited your title.
~TehCaek

thanks?
~bman

You're welcome
~TehCaek DarkJak