I just had an idea. You said in your opening post that you wanted to future proof as much as possible SO why don't you leave out all the extra cables for the time being and use the extra money to get an i7 ?
+1 for the suggestion. Could even ask someone like davido_labido* to make custom braided cables for you later on with more variation than just plain orange. The variations (e.g. orange, white, black and grey) really take the braids to another level.
* http://forums.overclockers.co.uk/showthread.php?t=18578991