Is there a particular reason why you're going with RedHat 9 instead of RH Fedora 4? If not, you may just want to get Fedora 4 instead, from here: http://fedora.redhat.com/download/
-- when your main concern is USB and wireless stuff, and ease of use, I would think your best bet is to go with the latest releases.
Either way, you'll need to give some more information about your wireless device. Who makes it, the model number, etc.