I'm not sure, via my understanding of the "force" that there are powers which are specific to any one side.
There are powers that perhaps the dark side uses more frequently than the light side, and may even be expressly forbidden by (blue lightning perhaps) but I see no reason why a Jedi and a Sith wouldn't have access to the same powers.
It is just a matter of learning how to manipulate a force of energy, it is not a matter of your moral affliation. Much like sex before marriage. The light side CAN do it, they just forbid it in most situations, but the dark side likes orgys. Catch my drift?
It isn't that the light or the dark side have a sudden special set of powers that become available to them, it's just manipulation of energy. What is the key is that one has the self control to know when is best to USE those powers. That is why it is said "Do not soccumb to the dark side." Meaning, excorsize self control, do not use your powers for evil ect.
And for the record, saving Han Solo is NEVER evil thus all force powers become acceptable!