You're confusing i.Link and LaserLink, which are completely different things. LaserLink is an infrared video signal, you buy a small receiver that goes on the TV, so you can watch your videos without plugging in wires. i.Link is just Sony's name for FireWire. If your camera is a Digital8, it will work with iMovie. If it's 8mm, Hi8, VHS, etc., then you'll need an analog-to-digital video converter such as Sony's Digital Media Converter, Formac's Studio DV, Dazzle's Hollywood DV Bridge, or Miglia's Director's Cut.
tooki