My home machine is custom-built in a no-name case; it has a 2.13 Intel Core Duo processor.
My pointing device is a Logitech TrackMarble. Optical trackballs rule — they have all the advantages of conventional trackballs without being subject to mechanical fouling. I'll never buy a mouse again.
I run Ubuntu.
Most of my tube time is spent in GNU
Emacs and Firefox. The nicest thing about having a monster monitor
is that my Emacs window is 80x94 and still doesn't overlap with my
shell window.
I use GNOME now, but you can look at the carefully tuned fvwm2 configuration I used to use to exploit all that screen space.
I collect my mail using
the fetchmail utility I wrote, of course.
Your guarantee of quality...I use it every day, so it
has to work. I read it using mutt.
My net connection is 15MB/2MB optical fiber through Verizon. My web pages live on ibiblio.
I travel with an IBM ThinkPad X61, named golux after the Golux in James Thurber's fantasy "The Wonderful O". This nifty little laptop fits on an airline tray table, but has a nearly full-size keyboard and a 1024x768 display.
Thanks to the amazing generosity of the folks at MacHack 15, I also own a blue Macintosh iBook (named "billywig" after a blue flying creature in J.K. Rowling's "Harry Potter" universe). It dual-boots Mac OS9 and Yellow Dog Linux.