Jeff,
It does sound like you're a fanboy. Nothing wrong with that. The biggest thing that would deter me from going this route is if the quality of the blu-ray rips is not as good as watching the actual blu-ray. Have you compared the two? Can you notice any difference in video or audio? On my test machine which is not hooked up to my HT I've been playing around with WMC7. I used a lot of third party tools descrived here:
http://www.windows7htpc.com/ It all works really well, but this is on a pc hooked up to a 24: LCD and a pair of klipsh speakers. My current pc does not have HDMI out so I can't see what it would all sound like on my HT.
