New computer.

[plutomaniac]

Btw, is a sound card necessary for a gaming rig like this? Do I need it if I'm going to use a headset?

The above post is not entirely correct. It is a common belief that sound cards are useless but if your pair even the cheapest one with a good headphone, you will see the difference. You can get an Asus Xonar DG which costs 25$ and a pair of headphones that will take advantage of it.

But if you don't have good speakers or headphones then there is no need. Well I am saying too much here. Basically, for you at this time, if you don't have good speakers or headphones don't buy a sound card, stick to onboard.

Btw: The sound cards for audiofiles cost something like 150$, so no it's not the same...