Video Capture / Display Software Recommendations

We've got an application in a robotic cell where we want to take still photos (or frame grabs) of the front and back of our product, and display them on a 32" hdtv outside the cell for about 30 seconds or so until the next part is cycled thru.

I'm looking for a product with usb inputs for the cameras and a HDMI output for the monitor. We would need the ability to externally trigger frame grabs from our plc.

Looking around on the different CCTV stores, I haven't seen any stand alone piece of hardware that fits the bill. Does anyone have any hardware or software reccommendations for this?

Thanks in advance.

Raspberry Pi should do it but it will take a little bit of programming.

While I'd like to get some hands on time with a Raspberry Pi, I'm looking for something a little more plug and play.