Do I Need a Sound Card?!?

[traceout]

I am currently building a computer and was going through the check list of things i need to have in it as was wondering if I should have a sound card in it.

I was looking into purchasing http://www.newegg.com/Product/Product.aspx?Item=N82E16836121053 this speaker system.

If It would be best for me to get a soundcard which one would you suggest I get? I'm on a budget, so don't want to spend bookoo bucks if i do,

thanks a bunch guys -TRACE

 

[AnalogKid]

Hi, I figured I'd ask in here rather than start a new thread. I just built a new system that has an ASUS P8Z68 Deluxe/Gen 3 with onboard 5.1 DTS sound. I have an old, PCI soundcard, a Creative SoundBlaster X-FI Fatal1ty that I was thinking of installing in the new board. Would the SoundBlaster be an improvement over the onboard soundboard?