Viruz and I are using the Zalman Mic. It's very good for a price of 5€.
I also agree with @$ i w y .exe (your name is to hard for auto complete :D). Razor is too expensive for the quality. A normal headphone is cheaper and has a higher quality. A Sennheiser/Superlux or in my case a Beyerdynamic Headphone for X € is always better then a Gaming-Company-Branded Headphone for the same price