O.K A 12GB HDD? 64Meg ram.....Laptop, your going to struggle here buddy You Like Ubuntu?
If so I'd reccomend this, it comes as a live CD but it has an option to install it to your HDD
http://www.watsky.net/
if your More KDE inclined try PCLinuxOS this also comes Live, with an option to install it to your HDD
http://www.pclinuxonline.com/pclos/
Good Luck buddy,
Jake