No unbinding necessary - I use hotkeynet, so I can assign one key (Q for instance) to send another key (Shift F12). But if you decide to got he bind/unbind route, I can recommend this thread:
http://www.dual-boxing.com/showthread.php?t=26098
Edit: I think I just got what you meant. Just place your macros on another actionbar and make shortcuts for those or use an add-on such as bind-pad.
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