Don't have anything for you on the wireless, as I haven't done it yet.
However, for the mirrors for updates go to:
http://easyurpmi.zarb.org/
Follow instructions and you'll have most of the packages that you need. It is rare that I don't find a pack there.
This is the main reason I still stick with mandrake. I have a friend that is a diehard Suse guy, using apt-get, and he can't find or get acidrip to compile. I just did a urpmi acidrip and was done.
Cheers,
Pete