Would I just get another one of these D-Link things and plug it into my hub?

In a proper wireless network, you have access points and clients. This D-Link thingy is a client, so it needs to talk to an access point in a normal set up. There is, however, a "peer-to-peer" method to using 802.11b without an access point. It is usually referred to "demo mode" or "Ad-Hoc mode." I have never attempted this, but it is like using a cross-over ethernet cable between two regular NICs. I would be surprised if this device supported Ad-Hoc.

You can get a D-Link wireless access point from TigerDirect for $69 here.

Like I said in the other post, D-Link is not a company known for their ubelievable quality, but the only other game in town is the Orinoco EC. It costs over $300 all together (card sold seperately) and is a pain to configure. It is way dated (1999 if I recall correctly) and forces you to use channel 2 when in 64-bit WEP mode. I will likely be buying one of these D-Links for my bedroom TiVo instead of running cat-5. I will keep this thread updated (or make a new post in off-topic).