I've had zoneminder 1.25 running on 12.04 for few months. IP cameras seem to be easier to get installed. Zones are working OK with the six Foscams we have. There is a log error that I get because of the way foscam formats video but it has no effect on operation.
http://wallyandsue.blogspot.com/search/label/Zoneminder
I just reloaded it on a quad core and plan to install a couple megapixel cams.