I keep the racial bonuses as they are, and then give every PC a +2 "heroic bonus" to any one stat -- but it doesn't stack with the racial bonus.
Then, I give out fewer points in the point-buy (20 points instead of 22). This creates characters slightly more powerful than usual, but the extra points tend to wind up in secondary stats (so the net game effect is +1 to a defense and a few skills).
-- 77IM