Cisco Systems is <A HREF="http://news.zdnet.com/2100-1035_22-6046533.html?tag=zdnn.alert">getting into the security surveillance market</A> with the acquisition of a small company called SyPixx Networks. The networking giant is paying $51 million in cash and options for SyPixx, which has developed software and hardware products that allow existing analog video systems to operate as part of a digital IP network. Digitizing video using the SyPixx technology will make video accessible at any time from any place, so watchers can respond to, investigate and resolve incidents as they happen.