I know this is way late, but this is for those who are searching for the same thing, like me.
I don't think that at this price point (or any, for that matter), you can get a good "gaming" headset. Done. End of story.
But what there are lots of is normal headsets that will perform just fine for everything you want, and will be cheaper at an equal or higher quality than similar-priced "gaming" headsets.
http://www.amazon.com/dp/B000UXZQ42/ref=as_at?tag=mak041-20&linkCode=as2&
http://www.amazon.com/dp/B001J30FZM/ref=as_at?tag=mak041-20&linkCode=as2&
There's a lot out there, and if you want a good mic+decent sound, the Logitech H110 paired with a decent pair of earbuds would do the trick.
DON'T WASTE YOUR MONEY