[Eeeps]

For the benefit of the OP, there are a number of key concepts that need to be understood.

1. Ethernet Switching
2. IP Routing
3. Network Address Translation
4. Dynamic Host Configuration
5. Name Resolution

All of these are required in your setup to enable the devices you have on your home network to communicate with each other and with the wider Internet.

The physical devices you have may include more than one of these functions.

e.g The SHub includes IP routing, Ethernet switching, NAT and DHCP in router mode.

I suggest you think simple when setting up you home network. Don't use multiple subnets and use static IP addresses for devices that provide 'server' functionality.

You should only have one device with router and NAT functionality that provides the interface between your local subnet and the Internet.

If real speed is required on intenal links use one core ethernet switch with multiple intefaces and avoid uplinks between switches.