Are you searching for a fast, lightweight and simple to install linux? A linux distro with good defaults and pre-configured nice gui settings? Then try Vector Linux.
The installation program is ncurses based (graphical text gui) but is very simple to use (at least for people with some linux experience). For now I've installed this distro in a virtual machine with 128MB of ram and a small hard disk (10GB total; >3GB used installing "can't live without" software).
After the first boot; I can surf the web, play a Mario's clone and write a Sci-Fi story with AbiWord!
In next days (I hope...) I'll try this wonderful linux in a real old pc. Stay tuned!