After some reflection I would suggest that you avoid something that, while it might help in initial speaker set up, would really activate your OCD to new levels.
Don't buy a sound meter and test disc and try to obain flat frequency response (at your listening position) as well as maximizing your systems potential to produce high quality sound, especially its ability to do 3 dimensional soundstaging. The odds are highly against success, so if you try don't say you weren't warned! :-)
Rok2id, I'll take credit for that bit of toe-in. I recommend it all the time, but for some reason I get little feed back - I think many folks here really are not into soundstage specificity as we anal folks are. FWIW, its biggest influence is the obvious, it reduces side wall reflections thusly making the on axis response much cleaner. A side benefit is that it will also change the reflection patterns off the ceiling, as well as all of the 2d reflection points. I think this works best in medium sized rooms where these issues predominate. Also, it can allow closer to side wall placement to widen the sound stage without lessening the center image's specificity. Lots ot trial and error though to get it right.