Back to Matt with the Media Center questions... I still think the best way to run an HTPC is in a client-server fashion. Let the PC record, store aggregate (or whatever) your media files and use one or more streaming devices to actually control playback and connect to your TV(s) and/or stereo system(s). Whether the streamers be Sage, Popcorn, WD, etc.
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Bruno
Twisted Melon : Fine Mac OS Software