After having a look at the compatibility list on the OSX86 Wiki, I saw that it says that the Linksys 100TX card is supported. I'm looking to buy a compatible NIC for OSX as my current chip (Intel 82562V-2) is unsupported, and Staples has the Linksys LNE100TX-CA for 10$.

So I'm asking you, is the 100TX short for LNE100TX-CA? Or in other words, if I get it, will it work?

yeah but make sure you fownload this kext..

link:http://forum.insanelymac.com/index.php?showtopic=6115

just follow the instructions and you'll be good...and i have a linksys 100TX card and after installing the kext i get ethernet..