Wii/xBox through my mac.
Thanks for all four quick responses, and especially TopHatPlus for the link. Aeboi - I didn't know there were Mac versions, so will look into that. It's all more complicated than I thought (I thought I could just plug the xBox into my laptop - shows I don't know what I'm talking about!). There is stuff here I don't understand (MPB? avi? hdmi?) so I think I'll have to ask my nephew!!!
Thanks again, annyo.