In planning my next server build I am planning on virtualizing my pfSense firewall, Linux VM for my UniFi controller/CrashPlan/Plex/PlexConnect/whatever, a CentOS VM for PBX In A Flash & NAS4Free (or equivalent) for storage. The NAS4Free VM will export a stripped mirror of 320GB HDDs for the other VM. My question is, if I put a 4 port NIC like this one in the server, what are the chances I can pass 2 ports to the pfSense VM and use the other two ports for ESXi (planning on passing through the two onboard i210 NICs to the storage VM).