Drunky,
In the first picture there is encircled inputs of the intergrated sound card and in the second a PCI soundcard, which is its own card.
Both of those goes for the audio.
On the second picture, the card above the encircled one, is the graphics card.
There doesn't seem to be any videowhatever-in port, but just the S-video output in the middle (the round one).
In the pictures I don't think I see any inputs for the video.
At least the graphics card doesn't seem to have any input ports, just outputs.
Are there any other inputs outside of the picture area? or in the front panel?
There are also separate video cards available, which will be plugged into the PCI ports.
I suppose there might be also external USB versions available, but I'm not sure about it... at least there is so many things available for the USB ports, even small vacuum cleaners

Also you need to know what kind of plug your camera has.