I was wondering if anyone has ever had any luck finding a mod that adds additional hotkeys on top of the 1-0 list that is already in the game?

I've been trawling the internet for a little while and haven't had any luck.

What you're looking for is http://planetelderscrolls.gamespy.com/View.php?view=Mods.Detail&id=7062&id=4723 by Fliggerty.
Note that it requires Morrowind Script Extender (MWSE) v0.9.2a to work.