I agree, those DVDactive reviews are pretty good.
So in reading a bunch of reviews, it seems like the general opinion is...
-Audio: mostly top notch
-Video: wildly inconsistent
-New Commentaries: fairly interesting
-Deleted Scenes: meh on the prequels, pretty cool for ot (although not great quality)
-Other extras: Some good stuff but could have been much better
FINAL VERDICT: A MUST BUY DUE TO THE INCLUSION OF AN EXTRA RIC OLIE SCENE