Wireless hub

I currently have 3 PCs and 1 Notebook. 1 of the PCs is
a linux box with the 2 others and the Notebook is WinXP.
The linux box is being used as my firewall/server machine
while the others are my primary use machines.
I have DSL service and the DSL goes into my linux box
on eth0 and comes out to a 4 port hub on eth1. By other
2 PCs and my notebook are all connected to that hub and
are each assigned internal addresses.
I'd like to get a wireless hub and a wireless NIC for my
Notebook in the short term and then maybe moving the
other 2 over to wireless as well. But that's down the line
and not something I'm all that interested in right now. Is
it possible for me to hook a wireless hub to the uplink port
on my current 4 port hub and it'd work as any other hub?
With the new wireless NIC in my Notebook connecting
to the wireless hub going through my current regular hub?
If it is possible, what hardware would you recommend?
I've heard that Belkin makes a good quiality product. Is
that sentiment shared by others on this NG?

Thanks for any suggestions you might give.

Christoph