Hello, I'm looking for some advice on what capture card to buy for streaming video. I have a couple of cameras that I can use to film with (a JVC HM100 and a Panasonic Lumix GH1), and the plan is to run them via HDMI into a MacBook Pro (15-inch, late 2008, running OS 10.8.3). Has anyone done anything similar? I was looking at getting a Blackmagic Intensity card, but I've no idea if this will run properly on my MacBook or whether I'll need to buy anything other than the card to get this to run. Any advice at all would be hugely appreciated. I'm completely new to streaming so don't feel you're teaching me how to suck eggs!