Disrepute and Zoot use Logitech C910/C920 webcams. You can yield fantastic results with inexpensive lighting with these cameras, even better with LED studio lighting providing you understand how. FACEIT is next level.
What nvc said basically. Don't underestimate the lighting, it's worth getting it right. But you also can't go too cheap, the webcam I use at the moment really is the lowest you can go without the lighting overloading the image (i have no clue of the correct terminology)