This is coming along very nicely, it is clean and well thought out. I do like the loop from the cpu to the vid card more each time I see it, it flows well.

I think that NaeKuh's advice about the QC for a drain would look fine if you used the stubby female out of a rotary 45. Or you could run the tube to the rear of the case and use a bulk-head fitting to put a QC on the back.

Or we have another scotch and think about it some more.