I used to run a gaming channel myself, though my co-creators didn't contribute and I ran out of time to do it because I decided to focus on honing my voice instead of gaming. That said, I can provide everything you need.
My setup is a Blue Yeti microphone w/ pop filter, and I have sound dampening all around my recording area to ensure a high quality product. I use a combination of Protools and some Audacity plugins I modified to edit the sound (excess noise removal, volume equilization, etc.) and at the current moment I use a combination of OBS, Camtasia, and Final Cut to record and edit my videos.
I would love to do additional gigs like this in the future, as they become available!
Feel free to contact me if you would like any audio or gameplay samples.