I have just installed opensuse 11.3 on my dell xps 8700 desktop. Both wired and wireless connection not working. Here are some details about network cards:
Do yourself a favour and download+install a more recent version. Support for 11.3 stopped ages ago. The hardware on your laptop is probably to new for 11.3. Both devices should work with a more recent kernel than the one provided with 11.3. Currently 12.3 is the latest stable version. My 2 cents: download a Live KDE or GNOME image, it allows you to run openSUSE from USB stick (or a DVD) and will thus give you a good impression about what works and what doesn’t.