Just make sure you get one that processes 5.1 and up through hdmi. Mine wont.
The new range of pioneers seem to be really good, (well in the $1000 price range), obviously if you wanna spend more, there are tons of kick ass ones out there.
I set my mates one up for him, tested it with the prologue from the Fellowship of the Ring, and the scene where Frodo and Sam are outside Minas Morgul, and the Witchking comes out on his fellbeast with the marching of the orcs. My god it was amazing.
The intro fight scene from Revenge of the Sith is an exellent test too! Same goes with Transformers (the audio is better than the video in this movie imo)
Also re: the calibration mike, yeah its not too bad, just make sure there nothing in the path of the mike and the speakers (and its more accurate in a square or retangle shaped room). Once you become accustomed to how it sounds, you will be able to play with the delays etc with more accuracy.