[quote]Roll two six sided dice and add the character's relevant statistic (which again varies from game to game) - on a 10+ the move succeeds, on a 7-9 the move partially succeeds[/quote]

This could work. Have you ever used it? What's an appropriate range for skills/stats, and how should they be decided/earned?

EDIT: I like it a lot better, in fact, ignore my previous post. The one thing I do want is to add in a way for situational stress to factor in. We can just subtract 1(or in extreme cases 2) in stressful situations. 

Maybe we can even have "perks" for the characters to have.