can you post the output of
lspci | grep -i eth
then we can see what Ethernet chip is in your system so we can recommend a driver.
Alternately if you are adventuresome. you could install Debian testing using the latest Daily netinstall iso. This worked on some new hardware for me recently that the regular netinstall failed on.
http://cdimage.debian.org/cdimage/da...t/i386/iso-cd/
Testing is due to become Stable in the next couple months (or however soon it's done) it's working great on several machines I have with no issues. It's worth taking a look and everything will be more up to date than Debian Stable.