If I'm not mistaken the Omega drivers contain a soft mod that converts the 9600SE to a 9600. That makes it the better choice.
Be carefull of this ... Not all 9600 SE can utilize this mod, as a matter of fact ... very few could, and those that could most probably are already sold.
I have a 9600 SE (that now collects dust) that would not take the mod. When the mod was applied, the artifacts (checker-board effect) were off the hook.