I'm thinking this is possible to just buy but I dunno. So This is what I want to do. I want to have a wireless network running and then have a wireless hub connect into and then from the wireless hub to other computers through cables. The hub would only be connected to the server via wireless. I don't want to to wire the whole building I'd rather setup wireless hub. Like that instead of a wired hub.

Yup, get a wireless bridge :)
http://www.newegg.com/Product/Product.asp?Item=N82E16833124015

All the Wireless Bridges only have one port so I assume I can just go straight into a wired hub then out to the computers?

They have bridges with built-in switches, like this one
http://www.amazon.com/Linksys-Wireless-G-Ethernet-Bridge-WET54GS5/dp/B0001ZRLRE
But yes you can run a normal patch cable from a one-port into the hub/switch of your choice :)

Yep. I've got one of those.

Crunchy: Your avatar kinda freaks me out, dude.:eek7: