My update just happened. Actually went pretty smooth except I had to load new drivers for my GQ-4X EPROM programmer, and spent a couple hours cussing (and fighting the urge to punch my laptop) over the N600 WiFi adapter (long story short, I *think* it had a problem with the adapter being plugged in a USB hub....I plugged it directly into the side of the laptop and it started working....then I moved it back to the hub and so far so good).
I'm sure I'll find plenty to whine/bitch about in the coming weeks, but for now I'm pretty "OK" with it.
Oh yea, one minor diff...SW Battlefront 1 isn't running full screen (I have a nice 17" display...about the only thing I really like about this HP Pavilion) and I haven't figured out how to "stretch" it like I could in Win7.