Originally posted by meem:
I'm just curious more than anything else
Since you're curious, here's a full answer. The other responses have addressed your specific configuration, but I'll take a shot at filling in the details.
A router connects two networks and is the most sophisticated form of consumer-grade networking hardware. Routers can be configured to handle data in any number of ways. Have an internet connection that only gives you one IP address? Put a router downstream from your cable/DSL modem and instruct it to keep your local network private. In this scenario, it is connecting your little network to your ISP's greater network. Because they are configureable (to a point...), routers give you a good deal of control over the way your local network interacts with bigger networks upstream.
A hub is the cheapest and least savvy species of networking hardware. It is a quick and easy way to create a local network. But, because they are the cheapest of the bunch, they lack the components that enable switches to keep track of which computer is connected to which port, requiring every data packet to be sent to every computer connected to it. Only the intended recipient pays any attention to it, but this "spray-n-pray" method of data routing wastes a certain amount of bandwidth.
Switches keep track of the systems connected to it and simply route each packet they receive to the proper phyiscal ethernet port. Since they are only marginally more expensive than hubs, I always recommend switches over hubs because of the performance difference. Hubs aren't dreadfully slow but there's an inherent limit to their throughput under heavy loading.
I hope that satisfies your curosity without supplying any misinformation

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As far as wireless routers go, I have a beautiful Netgear MR814 here that does its job well. It has a four port wired switch.
Peter