Impressions of 8

Looking for opinions I guess on the latest fluff from Microsoft. I have
a fully functional powerful and fast windows 7 desktop (scores a WEI
7.1) and I am wondering whether I should think about upgrading it.

1/ It is a older home built system with a Intel D975XBX2 motherboard,
Intel quad core processor,4 gigs ram and win 7 pro 64, with 2 24" flat
panels Would all this be supported?

2/ I have heard a lot about the formerly Metro interface being a pain
and really focused on touchscreens. These I do not have and do not see a
use for on this system.

3/ I use a older HP laserjet office printer (5yrs old) Would it be
supported. I have heard scary things about drivers not working.

4/ Scanner is only about a yr old so it may be fine but not sure.

Many games, apps and peripherals that work fine in XP, Vista and 7 but
not sure about 8.
I am not looking for someone to tell me to go look for myself because I
would of course do that first. Just looking for opinions on what others
are finding with there hardware and software. Not exactly a hard core
gamer but definitely casual. I do not want to lose a LOT of invested
time and money on new crap if you know what I mean.