video capture + stream system on laptop?

[Shu Du]

Hi, I need to setup a laptop running freebsd with video capturing 
function and streaming it out to a remote windows box.
I have several questions to ask here:

1. Is there any video capture card can be used on the laptop? Is there 
PCMCIA card using Brooktree chipset?
Does the driver for PCI card still work?
2. About the ffserver, does it generate TCP traffic or UDP? I assume it 
is TCP since it needs the client use http://hostname to access the 
stream. If it is so, is there any stream server can generate UDP traffic 
and also has the approriate viewer to access the stream?

I am pretty new here. Thanks for any suggestion.

Shu