So, using the Network Library RakNet, I've been able to get some semblance of a Client/Server setup going.
Currently Joining a server, toggling ReadyState, and multiple users mulling about on a map are implemented.
Need better handling of Client Disconnects (Should attempt to immediately reconnect once or twice before dropping altogether), as well as Drop In support (Join while a game is running). Perhaps more importantly, there needs to be some actual GAME (No monsters spawn, or anything like that yet). There's no prediction or interpolation, so it'll be pretty susceptible to lag, and in general, there's a lot to do. But hey, Progress!