Lifting an Isuzu Trooper--any suggestions?

 I think its obvious to say that any lifted vehicle has a tendancy to not "stay right side up" and is a risk I'm willing to take.
 It has a lot of clearance already and I can fit some beefy tires on it now so I'm not looking to go more than 3 inches, so would a body lift be a good option? Also, what is a torsion bar and is it necessary?--sounds expensive.
 Regardless, I plan on doing most of the work myself-I have acess to a car lift and basically all the tools i would need to do the job so any explanation on the complexity of installing a lift would be great as well.
 For any other posters, I forgot to add this in the original post but PLEASE don't tell me not to lift my car-I understand the risks and benefits and to me the benefits outway the drawbacks--afterall, it was a $900 dollar car so I won't die if it doesn't work out as planned.