Well PCLinuxOS 2007 just got released 2 days ago and it's pretty impressive. Everything works out of the box like a charm, including Beryl(all you need is to isntall nVidia/ATI drivers and just turn on the effects). The whole distro runs so smoothly, great boot-up times and overall the whole distro runs really FAST. You really should check it out, they put a lot of effort in this new release.