Oh, actually, With Great Power probably isn't very good for online play; it requires keeping track of cards... *shrugs*<br/><br/>When I was at Origins, I played a game within a system called QAGS (Quick Ass Game System).  It used only a d20, you had to keep track of just a double handful of numbers, and mostly ran cinematically.  You described what you wanted to do, and if you faced opposition or had set a very difficult task, made one quick roll.  I don't know how sustainable the system would be over a whole campaign...we just played a four hour instance.  But it was fun, and that time included making characters and learning the rules...