For anyone interested in tapering off a benzo, there's a great site benzobuddies.org that provides support forums, much like here for people tapering off. It also has a lot of good information on different taper methods, including the Ashton manual. The Ashton schedule is what I used.

As for being on 2 anti-psychotics, I'm on 2 and am ok. They're for different things, one boosts my mood so augments my antidepressant, while the other is for anxiety. The only bad thing about being on 2 is that some side effects seem to be amplified- namely muscle stiffness.