There's a better way: Get a mouse with a cord. Or set your wireless to recharge when it's dead - If it happens at 30%, you still have plenty of time, and unless you're a clicker, you don't need the mouse

Oh yea I forgot, there's not a way to loot without the mouse. I tried to do this too when I was leveling my hunter (macro-heaven), but I think I found a thrad on the forums where someone asked and was told that it was not in the game so as to not make it easer for bots etc.

lol...?

Try turning on the Mouse Keys, if you're using Windows. It's an Accessibility option, and you can control your pointer with the arrow keys.

Just write a program to do that mouse clicks for you. That's what all the cool kids do.

"The best way to simulate mouse events is to call the OnEventName method that raises the mouse event you want to simulate. This option is usually possible only within custom controls and forms, because the methods that raise events are protected and cannot be accessed outside the control or form."

http://msdn.microsoft.com/en-us/library/ms171548.aspx

There is a way to bind a key to the right mouse button within WoW, but I don't recall it offhand (it's at home, I'm at work). I'll try to post the link to this chain, after I get home.

Here's the script to bind a key (in this case the V key) to the right mouse button action:
/script SetBinding("V","TURNORACTION");Savebinding(Get(CurrentBindingSet))