emerald, thanks for the response. So what you're saying is that in order to get the same connectivity that I now have on my laptop, I just need:
a) the motherboard that I linked (which will get me connected to the network I am now accessing via a cable) and
b) the wireless PCI adapter that I linked?
Is that correct?
As far as those adapters are concerned, here
are the choices that I have, if you think the one that I linked isn't good enough. I'm looking for the cheapest, still reliable solution, really.