Quoting Henrik Hudson <rhavenn at rhavenn.net>:

> On Thursday 12 April 2007 12:41, "G. Scott Walters" <gscottwalters at gmail.com>
> sent a missive stating:
>> I've got a Dell Latitude C400 (1.2gHz / 800 mHz, 512 GB ram) that I
>> want to get linux running on again. I had Ubuntu Edgy running on it,
>> and it was fine, but I'm looking for something a little more
>> light-weight. Ubuntu works great on my desktop, as I leave it on all
>> the time, but powering up and powering down seem to take a LONG time
>> on my laptop.
>
> If you like Ubuntu then give Xubuntu a try. It's tied around the XFCE window
> manager, but is for the most part the same as Ubuntu.
>

I second that, I've got XUbuntu running on an old IBM A21 and it seems 
to run just fine. Josh