Setting a LAN or Home Network is always the same as the usual Network. Even you have different OS's on each one of them.
In our home, I have Windows 7 on SONY Vaio Laptop, My eldest son using Windows Vista on his ACER LT, my 3rd son has an Acer Netbook, my youngest son on a desktop running in Windows XP (and we have another desktop with Windows 7 not to mention our 2 PSP).
I bought a Linksys WiFi Router with a four LAN slot connected. We maximized the connection without any problem at all browsing the internet even its provided for a single connection only, we also use it playing MMORPG online games and we're playing LAN games including COD4 and I am the server / player.