Shuttle sucks really, really bad. I tried to build a Slot A system with them about a year ago and had nothing but trouble. The first board I got shorted out just by me pushing the reset button so I had to get another one. Then the other one did the same thing!!! And they were terribly slow even when they worked. I finally got a DFI board for less than the Shuttle and it has worked great with no problems ever since.
I am not trying to plug DFI, but I am definitely trying to bash the hell out of Shuttle. Or should I say Sh*ttle.