I'm planning to get the new iMac. By default, it's already a TV/DVD combo. Is there any way i can hook up my cable box to it as well and make it a true TV? I read somewhere about the dirty-little secret about those "cable cards" that cable tv providers don't want us to know: it costs way less per month than actually renting the stupid cable box and it works like a PC card. Would the iMac have a slot for this? If not, any ohter ways that i can hook up cable box to it?? As soon as i get this figured out, i'm marching towards my local apple store to snap one of these babies up!!!