It is trivial on the realteks to add a vlan and get the virtual adapter, but they have given me grief in the machines they are going to go into in the past.
Broadcoms wont do it on non server versions of windows.
What else is there that lets me get a second/third etc interface up, is supported on 32 bit windows XP and plays nice with the PCI bus. It will be sharing with the video capture cards in a DVR machine.
Havent really seen anything non realtek for sale in PCI for quite a while now, and I dont really want to be shelling out hundreds for some server grade card for a machine with to be honest doesnt have long left.