I am a Dell Inspiron 1525 with Ubuntu 8.X+ and have been doing video conferencing
with clients and relatives without much special efforts.
UVC Video
sudo apt-get install subversion build-essential linux-headers-$(uname -r) &&
svn checkout svn://svn.berlios.de/linux-uvc/linux-uvc/trunk &&
cd trunk &&
make &&
sudo install -v -m644 uvcvideo.ko /lib/modules/$(uname -r)/kernel/ubuntu/media/usbvideo/uvcvideo.ko &&
sudo depmod -ae
[This guy rocks in the forum ubuntu : http://ubuntuforums.org/showthread.php?t=501195 [...]