Thanks for the welcome blaze.
I've been searching for an OS to use on an old HP dx5150 for some time now. It has less that 1 GB of RAM, and it gets pushed to the limit at times. I've tried several distros on it, but I think I've finally found the perfect fit now that I've discovered WattOS...why haven't I tried it before now!
I prefer to stick with either LXDE or Xfce desktops, and out of the distros I've tried on that computer, WattOS definitely uses the least amount of RAM.
I couldn't imagine how it would perform on a newer computer with more RAM.