Got the cable from Startech today. Overnight shipped across countries FTW!
Edit: To bad my Laptop won't be here till sunday.
Edit2: Ok, I'm confused. The Slimline sata power connector that goes into the MBP has two wires coming out of it, not four - and those are red and black. Isn't black ground? Should I just rewire them as if it was yellow? I mean, it can't be + and ground...
Edit3: Apparently it can. It's apparently 5V and ground, which seems about right.
your cable should look like this....
keep in mind the yellow and red wire have to be there with there grounds in order for the drive to properly support power management features sata has.
now, if you have a sata to molex converter WITH orange....cut it off completely, laptop sata drives DO NOT need 12v lines.
The yellow supplies 3.3v and the red supplies 5v , both of these must be present to properly use power management on the sata drive (such as allowing the macbook to use a main drive in place of optical drive and properly sleep)
hope this helps, here are some pictures of a properly made cable, and how the ends should look.
make sure you grab some heatshrink tube to make it look nice
you can decrease cable length as much as you like to make it look better also.
good luck!