Mostly stuff off the Wii & PS2.I know a little bit about capture cards. It would help to know what it is you're trying to capture.
I've always just used an hdmi capture card with a separate converter for other inputs.
A lot of capture cards don't like interlaced signals. Most Wii games have a progressive mode but for PS2 you'll need an external deinterlacer.Mostly stuff off the Wii & PS2.