Hm. T hat's not to bad, the setup in Lyian's pic.. I wouldn't be able to branch it off the res like that, cause mine's stuck in a 5.25" bay. But, I could work that in with my GPU, possibly.
I looked through JB's build log as well, and got to thinking that it wouldn't be so bad to have extra tubing in the case, rather then going the shortest, most direct route from component to component. I used, maybe, three or four feet of tubing in my build because I'd go out from one component, curve it into a 90 to the next.. There wasn't any more put in than needed. But, doing it that way doesn't leave a lot of space to add QDC's to... Or, there's something like this..
http://koolance.com/vl3n-quick-disconnect-no-spill-coupling-pair-with-l-bracket-for-id-13mm-1-2in
Could get a T-line off of.. Something, and run it to the back of that.
Though, I'd still love to have QDCs on every component, just for the simple fact that switching them out, and filling them, would be -easy-. If only it didn't cost $200... I'm considering just buying one or two sets per paycheck. I dunno, we'll see.
Edit: Reworked the location of the QDC's and cut those in half. Came to the realization I didn't need two QDCs per item.. I could put the QDCs inline with the tubing, rather then attaching them directly to the component. Inline, I'd only ned 4 sets (5, when I get the new rad.) which puts it at about 100 bucks.