I second, third or fourth the idea to use an Ek Res bottom as a top.

J.almonte really pulled it off well in his build, it looks really clean. The D-plug between the video cards looks great too, I just hope it doesn't leak.

The blue looks pretty good but I think if you used clear tubing with blue fluid it would look better. With using clear tubing the barbs would be visible through the tubing and be a bit more pronounced. The blue isn't opaque enough to stop a little bleed through of the coloring of the barbs. Blue tubing is hard to pull off, most of the time it just doesn't quite look right.

Making SLI look good with an inverted atx case is a bit more tricky too. It's hard to find a lot of good options for the return. If you do a 45 off the gpu to the top of the reservoir I think that would look pretty nice. It would still maintain a slight bend which I think would look good.

I also turned my cpu block 90 degrees from where you have now because I liked the way it looked, and it made my tube routing easier. From what I've seen so far is that these i7's don't care about every last degree. As long as you're able to remove the heat and keep it reasonable it'll run quite well.

The acrylic tops for the gpu's also give a bit more character to the build too. They reflect and bend light and kind of make your case look a bit more interesting. The delrin tops are nice and sturdy, but they don't do a lot aesthetically for me.

That's my 2 cents for the night, take it for what it's worth. I'm really enjoying this thread though, lots of entertainment and enthusiasm from fellow addicts. Keep up the good work Rocky.