Thought I might add in a little tutorial on how to do the 6-8pin plugs which come with some power supplies like the Corsair.
These are the tools that you'll need, as well as a ruler, and a heat gun and of course the sleeving (Thanks to Nils at MDPC for this sleeving, beautiful stuff that it is!).
http://members.iinet.net.au/~dreamax...s-required.jpg
Make a slit all along one side of the heatshrink which is covering the ring on the cables. Then blast the you know what out of it with the heat gun. And it'll end up like this:
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