For a Conroe mobo, I was planning to get the DFI nForce590 board, mainly because it has a pleasing amount of PCI slots considering so many boards seem to be dropping them for PCI-E x1. But some things have been bothering me... 1) Does anything actually use PCI-E x1? I can't think of anything, but are we expecting a sudden upsurge which would see me buying a new board soon? 2) Between the 2 PCI-E x16 SLI slots on that board are 2 different slots I don't recognise. What are they? I'm assuming even more different forms of PCI-E?!