Cool you have the intel ipw3945 wifi card so it should be fairly easy.
03:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG Network Connection (rev 02)
This card work well with either ndiswrapper or any of the default driver in SL but some works better than others.
I have the same ipw3945 as backup wifi card to my bcm43xx one.
For any version before SL 3.4e use this guide if not working by default:viewtopic.php?f=52&t=8933
SL 3.4e or later it work out of the box / cd /dvd except in 1.1PE you would need to edit / move a file to get it to work.
The forums is full of the ipw3945 info.
Most of them you just right click knetowrkmanager and select the wifi connection / name you want + wpa or wpa2 + auto + password / passphrase and you are connected.
Just make sure the distance or signal from the wifi router to the laptop fairly good as the ipw3945 does seem to have difficulty sometimes in connecting on a wep / wpa /wpa2 connection with weak signals.
Or disable wpa and enable mac address filter so only your wifi / family / office wifi cards can connect to it if all else fails.
Only thing might be the finger print scanner could be a bit of a issue in setting it up not sure.
Everything else should work.
Cheat code if needed:
Replacing the ... with correct numbers you know works. Ati control panel should be able to configure it for you as well once in kde / gnome.
Hope this helps.