) I then normally stick any unused cables in a spare drive bay and zippy clip the rest to the left side of the drive cages 

benjo said:Another choice is cable loom, as mentioned above. This stuff is slightly harder than the spiral wrap, but by no means difficult. I had trouble finding some, in the end i found some in a £1 store. Needless to say i'm not using it anymore because it made the case look too bulky![]()
I got fairly small stuff when I did it and it looked fine. I've also used black flexible conduit which works in the same way as the above (But probably looks better)
Should be able to get that fairly easily from an electrical retailer.