Anyone out there using one? I am thinking of getting something like the MSI RX480M2-IL board, sticking in an Athlon64 4000, and an X850pro (PCIe). I mainly use my computer for gaming, but I also want something that is a little smaller, and quieter than what I have now. What are the negatives of going with this kind of setup vs. a regular ATX/mid tower setup? Thanks in advance.