im putting together a shuttle, and i wanted to put a 5900u/or 5950 in it, however mostly all of them are 2PCI slot. Does anyone know of one that isn't 2 slot, or WILL fit in a shuttle? I was looking at the asus 5950, (http://www.newegg.com/app/ViewProductDesc.asp?description=14-121-164&catalog=48&depa=1 ) and it looks as if it will fit, then again i can't really tell how high that heatsink is in the picture.