I bought an Inspiron 1420n from http://www.dell.com/ubuntu in 2007. That link used to take you to a page that described the benefits of Ubuntu and linked to a half-dozen desktops and laptops for sale at different price points, all slightly cheaper than their Windows counterparts. Now it goes to a single desktop system.

The laptop has worked well with Ubuntu 7.04 through 8.10 and Fedora 11 through 15. The main problem is that sometimes my keyboard and trackpad do not work after I resume from suspend.