I had once a D-Link DFE 670 TXD, a 10/100Mbit card..
I had some problems with it - my miggy wouldn't start when it was plugged in the PCMCIA during cold boot, but when you inserted the card after first boot, it was working on 100M mode - transfers wasn't very great, I got only an Elbox 1230/40MHz MKII then..
There was some problems with NSD in OS3.9 (had to edit NSDpatch.cfg - card wasn't working with it)..
:-)