I'm sorry to disappoint you, but I was planning on making a computer not a work of art.
The 12V ATX cable was not the longest i'd ever seen and I was hesitant of putting any directly under the motherboard. As it is, not many cables impede airflow and it runs OK. The SATA cables are orange because...well, that's what came with the motherboard. If Nightkhoas wants some black ones then I'm sure he will get them in the future.
I'm sure I could have improved on the rest of the cable management (various cable extensions probably would have helped), but after getting back from work I could not justify to myself staying up all night sorting it out.
As it stands, its a full functional, very fast, rather loud PC - just as I hoped/expected, and I'm sure nighkhaos will be very happy with it. I'm sure when he embarks on phase 2 of the build (noctua fans, sound card, assorted noise reducing features, possibly water) he will have a truly uber PC.
Edit: The cable(s) that runs vertically were there when I got the case. It can't be threaded round the back because the clearance between the back sheet and the door is tiny, only small cables can be routed that way. I could have separated them and tried to route them - but the existing system did the job and would not be seen as the case door is always going to be one. I tried to go for the build log, but a bunch of the pictures I took ended up very blurry and I wasn't going back to step 17 or 84 to retake the photo. If anyone has any specific questions about putting it together, I'd be happy to answer them.