The Video Server feature supports a wide variety of USB cameras and turns them into web-enabled cameras, supporting both live streaming and motion-triggered features. Unfortunately, I didn't have a compatible camera handy, so couldn't give this feature an actual workout.
TIP: The 9000VPN supports cameras using OmniVision and Philips chipsets. See this OvisLink page for a list of supported USB devices.
Figure 4: Video Server controls
Figure 4 shows all the controls you get except for the two email addresses where you can send motion-triggered snapshots. Captured picture sizes can be set to the 320 x 240 shown or a smaller 176 X 144 size. Images can also be recorded in AVI format on any USB drives that you have attached to the system. Recordings will last as long as motion is detected and OvisLink says their next firmware will add a setting to control the time between no motion being detected and the end of recording.