Hi chrysalis
We use pfsense on some commercial setups, usually on dell poweredge xion dual quad core, 16gb ram, with raid 60 drives, and 2 x 4 1000mb nic cards, as well as onboard 4 1000 nic cards. Works lovely on multi nodes
We also use other firewalls and setups, but for home use, your setup looks ok
I do not use Sam knows box for anything other then Sam knows, and our setup is dynamic for sam knows, so it does not interfere with our IP range
Many thanks and I hope you don't mind my post, but please delete it if you want
Many thanks
John