Theire are certain weapons that have 2 part one in each hand. I remember a fighting technique with 2 swords one long sword and one thats more dagger like.
As for combat system turnbased wouldn't be bad. When I look at the combat in <img src="/ubbthreads/images/graemlins/beyond.gif" alt="" /> and all it's complex tactics you just have to press pause key. So why don't you make it mandatory then in <img src="/ubbthreads/images/graemlins/div.gif" alt="" />˛ .