Yeah, I love it. I love Gears of War, Guitar Hero II, etc. My favorite feature though - the Media Center Extender. Coupled with the Transcode 360 software, I can download a movie, fire up the 360 MC, and transcode any format (DivX, XviD, etc.) to watch it on the fly. So basically, if I want to watch any movie, it'll be ready in half in hour assuming it's a good torrent.
As for HDMI, it's nice to have, but not necessary unless you have an HDTV that uses HDMI. XCM is supposedly making an HDMI cable for the normal Xbox 360. The HANA is supposed to be an improved version of the original ANA scalar chip, though. So I guess there is a little advantage, but there are reports that the HANA chip doesn't really do much and it's actually the video card that does the heavy lifting.
As for the 120GB hard drive, it's only good if you actually use it. Saved games don't take much space, so the 20GB is really good enough for most. Unless you're an avid Live Arcade and Marketplace shopper, it'll take a while to completely use all 120GB.
I'm just waiting for the 65nm refresh and hopefully improved cooling.
Yea i like it, but the only thing is I dont have one. I would save up but I am saving up for a new computer. Maybe one day I will get one, because it is the best system.