do you really need a headset with mic connected? or can you get a stand mic and headphones? i have a plantronics microphone, which cost around 25 dollars... it works great, best quality sounding of everyone i know in vent and then i have a pair of Sony MDR700... i love these headphones, my third pair and i highly recommend for sound quality, great bass and it picks up everything. Sorry if this was a waste and you need a mic with headset combine, but this is my 2 cents.
edit: the Sonys are 100 dollar headphones