Dave, I'm interested in the Atom hardware you've had success with.  $430US might be a lot for a typical home user but certainly not for someone who likes to experiment on the bleeding edge. I wonder if you've seen or tried Cero on these ? (http://store.netgate.com/Netgate-FW-7541-P1846C83.aspx) Or do you build your own? I personally have several of those 7541's just running pfSense and they are wonderful pieces of kit.