You need wireless Ethernet bridges, not wireless access points. Wireless access point is to provide wireless devices access to the wired network, not the other way around.
And yes, hubs can be connected to other hubs. Provided you have either a hub that can support an uplink, or a crossover cable. (Most hubs have this built in now).
Wired networks are faster, and cheaper. I wouldn't bother with a wifi network unless you have at least one laptop.
