Ok so soon I will be doing a MAJOR overhaul, and I want to get a Mobo that supports Crossfire. The problem I am seeing is that with two video cards, a PCI slot may be blocked. The reason I would worry is because I have a PCI wireless card, and soon will be getting a new sound card. So I was looking around, and I noticed that there aren't any x1 PCIe soundcards or wireless cards for that matter. Why is this? If PCIe is supposed to be faster, why haven't we seen mainline expansion cards besides videocards? Will there ever be any?