FIrst thing you'll want to do is find out if your wireless card is supported by linux.
I use Red Hat and usually recommend that, for no reason other than I prefer it to the other distros I have tried (Mandrake, Caldera & SuSE)
To find out if your Wireless card is supported goto http://hardware.redhat.com/hcl/
(I presume the other distros have similar links)
In fact a quick google revealed this link http://www.redhat.com/docs/manuals/l...install-guide/
which seems to answer your questions.