Well, in accordance with a possible 3rd edition D&D ruleset, maybe DD2 could have dual wield feats available (to all?) but also require you to place skill points in varying levels of ambidexterity to outweigh any penalty to your 'to-hit' incurred by dual wielding.

I'm a big fan of the 3e rules, lots of fun combinations possible; the more I get into the realm of diablo'dom and generic skills that enable a character to kill everything that moves in a couple hits, the more I become turned off and bored.