Alls it would require is the ability to toggle a sword between one hand and two hands. Given how the individual hands in Skyrim work, it would only require a small bit of coding to allow you to equip both hands to one sword. Given the ability to hotkey and favorite your weapon and spell configurations this would allow you to switch the weapon between one and two hands on the fly. Kinda hope they add something like this to the game.
Anyways I just had to share that thought with the forums, bye.