home-made round IDE cable howto
 

"Sick of those flat grey space-taking IDE cables that are sitting there in
your system, waiting to be modded? Why spend ridiculous amounts of cash on
pre-rounded IDE cables when you can do it yourself!? Of course, that is the
modder's mentality. Well, I decided to do this for my own system, because I
had some flat IDE cables and some sleeving laying around."

http://www.corelimits.com/guides/ide_splice/

Done the slicing for years; there is "soft" and "hard" type flat cable, I prefer the "soft" type. As for sleeving it, I don't recommend; taking the connector out is the easy part; snapping them back in making sure good conductivity is hard to do.:D

he does not remove the connectors, read the howto ;)

Shouldn't jump the gun; read the whole thing.:)