simple radius auth in school??

[Sascha Schneider]

Hi List,
I'm new to freeradius and try to set up a radiusserver in our school for
our teachers, whome till now had their access via AP with MAC-filtering.
Freeradius with sql is up and running on OpenSuSe 11.0.
radtest works fine, DHCP is provided by an IPCop box

Now my questions,
we have some new Edimax EW-7209APg, that support RADIUS Auth with EAP/MD5.
1) How can I setup that system to make it as simple as possible for our
teachers.
We don't need ssl or WAP or a splitted connection, where WLAN access is
yust granted to the intra but not internet or vis-versa.
I want to have my wired hosts and the wlan-hosts in one net (e.g.
192.168.10.0), no VLAN.
As simple as possible, people with username/password can access the net
wireless, wired clients are always on the net.
2) Is there a "best practice guide" for this kind of situation??
3) Do I have to install a captive-portal??
4) The EW-7209APg has a buildin RadiusServer, but I didn't manage to
connect a laptop wireless to it, how is this done. (with no auth it
works), but I don't understand what I have to do on the laptop to show me
some kind of window to enter username and password, or is this done as
some kind of dialup.

Sorry for the bunch of questions

Greetings from belgium,

Sascha Schneider