Jack,
You setup is basically what I'm talking about.
Glad it's worked so far for you. We're on the same page - simple, pretty cheap, and reliable.
How much traffic/overhead is used with replication? Did you just put the replication connection on your main LAN or use dedicated NICS? I'm thinking of just putting both "servers" on a switch that then connect to main router.
Have you looking into server 2012 r2? supposed to have more control over replication.
How are you doing backups in addition to replication?
larry