I could care less about the HDMI as I am not interested in HD-DVDs through my xbox and component is a-o.k. for current gen games.... (chances are you would only notice differents on rendered video sequences in games with HDMI anyway)
What i DO care about however is if that 120GB hdd will indeed be compatible with current gen xboxes and subsequently the prices of it (if sold seperately). I am scared if 20GB is $100, what if 120GB is like $300? ......Stupid proprietory crap...