Ubuntu 12.10 was quite a pain for me to get setup. I am running an i7 (1st gen) processor with an AMD 5770 graphics card and after installing 12.10 I found the interface to be incredibly sluggish with the default drivers that came installed. Actually, initially the interface was just fine but after several minutes something causes Compiz to slow down, making for a horrible experience. Furthemore, if you've ever used the open source drivers (gallium) for AMD you know that the efficiency is poor that the fan speed is always on full blast, making your PC sound like a hair dryer.
