what do you mean? i want to use it for youtube. I just want to have a good microphone for that. so if you have a bad soundcard, it doesnt matter how good the microphone is, the sound can be very bad? and what do you mean with mono sound? is the plug mono or stereo?Cheap enough to try and get an idea if your soundcard is good enough to do what you want.
I want to record gaming commentary. Its a very old microphone, but i dont hope that old ones are very bad(i hope its at least as good as my mic that i used to use but broke. that was a 20€ headset so not very good). I use windows movie maker and sony vegas 11.If your microphone came with a 1/4" plug, it's not really a 'good' microphone.
How exactly do you want to use the microphone for youtube? What are you trying to record? What software are you using? Youtube is video with a compressed audio track ....