What you're doing is what I did when Mary went freelance. Our DSL used to be routed through an old laptop, but now comes into a Vigor router. There's a 16 port 10/100Mps switch under my desk, with another 8 ports under Mary's. I also keep the airport hub by my desk, for wireless access elsewhere in the house. I haven't locked down the MAC yet, but it's on my to do list... Then all the servers are now KVM'd (and I just upgraded the KVM to one of the new USB-ready/flashable Belkin Sohos). Next task, KVM up Mary...