I have a SONY HD camera AVCHD. I am using a Mac Tower 2 x 2.66 GHz Dual-Core Intel Xenon, running OSx 10.6.8 and iMovie 6.0.3. I have tried importing movie from the camera using the Sony-supplied USB cable but nothing shows up. Any suggestions? Would a firewire cable help? DO I need special converter software? This is a real pain as I have had many cameras before (all mini-DV) and have never had a problem importing to iMovie or Final Cut.