Hi, i am about to build the exact same setup. I am gonna set it up with my Onkyo TX-SR605ES and my panasonic PTA900.
I hope to be able to use hdmi for video and sound !.
I have some questions seeing we are gonna have the same setup.
1 - i am gonna use the harmony 555 to control my htpc, my ampli and my projector. What ir receiver do you use? if it is the one from the antec fusion, is it working well? i read bad reviews about it. Moreover what do you use to configure it on your pc? you say you cant do everything MCE does, ,what do you miss for example?(i never had an MCE remote, still am with my old pinnacle remote with pcTVremote

)
2 -i see you use" CybrDisplay External Status Plugin", it is for displaying infos on the antec fusion LCD?
I might have other question while building my setup
Thanks