I already helped you out.  If you check the "User CP" section at the forum nav bar, you can see who's left little tidbits.  
But yeah, if you have a 120" screen, you're pretty far back.  And with two centers, you can justify buying more gear, which is always a plus.  What do you think you'll be looking at for an amp?
This thread is so hijacked, but then, the original topic has been well-discussed, so I think a tangent is acceptable.