I used to own a Gamecom 377; horrible sound. I didn't notice at the time but eventually when I switched to something that had a tiny bit better audio; it made my Gamecom's sound like dog ****. The mic was also bad.
I suggest some good headphones ie superlux 668b, samson 850 or something someone else will probably reccommend.
If you just want voice communication without buying a separate mic from the headphone I'd suggest the Microsoft lifechat lx-3000's. They're dirt cheap and has what you're looking for.
Have you considered an attachable mic? You could use pretty much any pair of headphones you want with a standalone mic, which usually means better audio going in and going out.
Here's an example: http://www.amazon.com/JVC-HARX900-High-Grade-Full-Size-Headphone/dp/B0013P3ZOE http://www.modmic.com/collections/frontpage/products/modmic
The mic is really easy to attach and sounds great. There's also a ModMic 3.0, but it might not work with whatever sound setup you have. You'll have to do some research if you're interested in the 3.0. Also, those headphones are just a popular pair on Amazon that I picked to pair with the ModMic and fit under $100 total.