Sound Card Suggestions

So I think that I friend my On-Board audio. I was wondering what sound cards are the best for around $100 USD. 

It depends what you are trying to achieve.  Can you explain what you want? That way I can recommend either an internal sound card designed for stereo or 5.1 or 7.1  or an external DAC/AMP

Is this for speakers? Headphones? both? surround or stereo only? do you need a line in for a mic?

I have the cm storm sirus which has USB and analog. So although having 5.1 compatibility would be nice it isn't a deal breaker. I will also be using It with my klipsch pro 2.1 computer speakers. As far as a mic goes having it would be handy but I have a usb mic I use for most things.

Doesn't worth it in my opinion. Just keep your money and buy something better.