I don't usually post stuff I'm trying to sell to the list, but I remember a few conversations a while ago regarding cheap Linux Laptops
I'm selling my dedicated Linux laptop as VMware on my main one does 99.9% of what I need. It's a Dell Latitude C800 currently running SuSE 9.1 with almost everything working, the modem and suspend/resume have issues but only since moving to a 2.6 kernel. Power management, 3D, thermal control and the CPU Throttle (will go down to 700MHZ when under a light load if on batteries) all tested. Feels pretty snappy and comfortable on KDE, the 1400x1024 screen helps, would be even better with a boost to the ram.
It's an 850Mhz PIII with 256MB Ram (a slot is free to add more) ATI M4 with 16MB of Dedicated video memory (this is interchangeable with other ATI and Nvidia daughterboards, ones from the Inspiron 8000 also fit) 10GB HDD (cheap to fit a larger one) CDROM and Floppy
Fitted with the 1400x1024 display, no dead pixels and nice and bright.
Has all the usual ports. USB, Firewire, serial, parallel, VGA, PS2, 100baseT Ethernet, Modem (not working in Linux, but I haven't tried very hard, google says it's possible) and two PCMCIA slots.
Comes with the Dell case, Charger and Modem lead, Windows 2000 OEM license (no media) CD-R with the Dell drivers on, CD-R with SuSE 9.1 personal.
Good condition overall, couple of small marks here and there.
Battery life is quite poor, replacement is available from Dell for £75 plus VAT.
£300
As I say I normally don't post thing like this, so sorry if it causes anyone offence.