I have a Shuttle Xpc and I love it. I have the AMD version with the GF4 nForce chipset. It's a great pc but only problem is that its at work on my desk and not at home
These are suppose to come with some tricked out cooling system that uses some type of copper heat pipes cooled by the same fan that the power supply uses or something like that. I didn't install the mobo software so I can't check the temp at the moment.
Really like it alot. If I get one I'd upgrade the video card tho.