This is a new quest for me, but I have been having a good time so far, and I found my greatest success using a Mini-Me version of PCLinuxOS 2008. I have tried the Ubuntu Customization kit, and I have also used Custom Nimble x, with not much success. The Ubuntu Customization kit also was somewhat confusing. With PCLinuxOS I just installed it, configured it for my liking, and ran a program from the menu to create your ISO. Next week I will do a quick over view of installing, and part one of a guide to customizing.