(Well, I'll give this a little bump.)
I don't like betas, but I have been waiting for the next official release. It's been a year since I've run Linux at home, though I use it extensively at work (Red Hat Enterprise). I'm planning on adding a spare 200G (or is it 250G?) hard drive to the Dell and playing with it. I'll use Ubuntu vs Kubuntu, as I use Gnome at work. (I never liked KDE, though I don't much like Gnome either.)
Fwiw, my distro of choice in the past was SuSE, running enlightenment wm. However, SuSE messed around with their installation process in ways that eventually gave me the incentive to come to Mac.