Re: Playing with OpenSuse 12.3
Well I can only tell of my own experience. I would say if you're happy as you are then there's no point switching. It can take time for you to get things set up as you like them, and can be often just be running to stand still.
However, it was a pressing matter for us to replace Ubuntu 12.04 on this laptop with another distro (lots of hangs and freezes sadly), and I'm happy to report that openSUSE 12.3 fits the bill so far. Got it all installed and set up, and so far so good. Got all the software installed that we need, and this is indeed a fast setup on the metal. Lovely quick boot and shutdown too. Very polished. The devs loved this one clearly, and I would recommend it to anyone.
Unless you're happy with what you got already.
AMD Phenom X4 945, 4Gb Crucial 800Mhz DDR2 RAM, 1Tb SATA III HDD, nVidia 9800GT 512Mb