Slightly related, one of the alchemy cables just got shoved through my letterbox (a molex to sata) and although it's only a cable, I'm about as impressed as I could be with it. It's very very flexible, not nasty plastic feeling (like standard Seasonic stuff). The braiding is flawless on the cable, it's not badly done or irregular.
My problem in replacing everything with Bitfenix cables would still have the half-arsed Seasonic cables coming out of the PSU. If you can find a way round that I'll buy a whole set - and I'm sure lots of other people would too.
These are the cables I mean