It's a Sony PCG-Z1WA (1.7GHz Centrino) -- just for traveling ... sorry guys, 10 pounds is a little much for me

and the other is a HP ZD7000, The 8790's "slightly smaller" brother... 3.2GHz P4 EE / 128MB GeForce FX Go5700 model Modded w/ 60GB 7200RPM system disk and 1GB DDR400. 2 x mirrored 250GB Firewire drives for data storage.
the 8790 is a P4 3.4 EE / Dual 60 GB 7200RPM HDD's @ RAID 1 for system disk / 2GB DDR400 ... 2 Mirrored 320GB Firewire Lacie Big Disks for data Storage. ... Yeah, I wasn't messing around when I redid my studio. I don't want to touch anything setup-wise for at least a few more years. My aim was quiet and powerful, and it's pretty much been achieved... and look! The 20" Apple Cinema Display working via DVI as the primary display with the 8790 at it's native resolution

Yup, lot's of stuff there ... I could keep goin and goin.