Yes, I know I was once a beginner, but did I start with Gentoo when I was a beginner? No. I'll repeat myself again, Gentoo is not for beginners.
Just a side thing, I don't count Ubuntu as a Linux experience.
Using the Live CD is no different from using the text installer, unless you just hate the CLI interface. You still have to compile the kernel, modules, dependencies, xwindow, xwindow managers, programs, etc. You still have to edit xorg to boot XDM, GDM, or whatever you would like to use to boot by default if you want a graphical login and if you want certain control. You still have to make sure all of your drivers compile. You still have to edit your fstab to add in your drives. You get absolutely no bonus in using the graphical install, besides circumventing a text install, if you're scared of that.