Hmm, I think bitt ansewered your question, but I just wanted to add some more... 802.11b "hubs" are divided into two types, those with NATing routers built in, and those without. If you want to connect wireless stuff to your preexisting ethernet network that either has real IP's or it's own NAT box, you just need a strait Access Point. If this is your one box for your one IP, you probably want something that'll handle NAT too.
Now, the unfortunate part is that you don't get much of a discount if you just want a strait access point, but you do in theory get a bit more flexibility. FedEx has my all-in-one
netgear FM114P, and I'm anxiously awaiting it's arrival...
Matthew