Hardy Heron and the Dell Precision M4300 July 16th, 2008
Summary: it just works.
The full sensory experience of Linux on a Dell M4300: sound, vision and tinfoil-hat microwaves January 7th, 2008
Gutsy Gibbon on a Dell: almost everything has been fixed (edit: see Hardy Heron for absolutely everything being fixed).
Laptop and Linux: the fixes for a Dell Precision M4300 August 28th, 2007
Getting a Dell Precision M4300 to work with a weird Feisty/Gutsy hybrid Ubuntu (edit: upgrading to Hardy Heron eventually fixed everything).