Congrats on finding the enjoyment that is quiet computing
. I can sympathize with the monitor noise. I didn't know my monitor back home in Iceland was buzzing until I quieted my computer. Actually turned up the fan noise a bit to a gentle whoosh to drown out the monitor, since that was more annoying.
You don't have speed control of those fans? If you do you can just check on the heat after an hour of gaming and ramp them up a little bit if necessary.
But it's surprising how much cooling you can get with the right fans on the quiet speeds
. You can also try some bench marking and see how the temps react.