zalman zm-1 is good if ur on a budget, samson gomic and modmic (it's for headphones though) are also good.

Thanks for the advice!

i use a usb dynex mic from best buy i haven't had any problems with it i think it was like 15 bucks quality is pretty good from what i can tell

I have a modmic and love the quality and how it enables me to not have to buy some shitty "gaming" branded headset that lasts 3 months. HOWEVER it surprises me how often I am annoyed by having two wires come out of my headphones; I am thinking about shrink wrapping the two wires together or something.

http://www.amazon.com/Neewer-3-5mm-Hands-Computer-Microphone/dp/B005DJOIHE