The "little work" solution to this would be to take a standard two handed weapon, give it the graphical appearance of a pair of daggers, and call it "twin daggers" or something similar. It'll function as a two handed weapon in all mechanical respects, and you might have to get creative with the model to make it work well with the animation. OTOH, this would also make it inherently balanced with two handers...
NeutroniumDragon has the right idea, although that's the kind of "hack" solution I was hoping to avoid... *if* a better/true version of dual-wielding is actually going to be added to the game one day (which seems possible if you look at ForkTong's response with optimistic glasses on).
