I use the Nvidia form my 1Mbit ADSL. It is apparently slightly better than
the 3com.
Howver, both will work wonderfully since most DSL doesnt even use 1% of the
nics bandwidth.
Also, a tip if you use the Nvidia, select the NIC in Device Manager, and
change the Optimize For option to Throughput (instead of CPU). When you do
this, the NIC uses much less cpu (which seems backwards doesnt it?). In
fact, it uses no cpu overhead when throughput is selected (compared to about
5% when cpu is selected).