First let me say I am completely MAC challenged, so please don't laugh at my questions. I am trying to decide the best course of action under the following circumstances. I own an iBook G4 (1.33 GHz Power PC G4) 512 MB Built-in. I have no idea what that means, but I'm sure it's relevant. I also have a JVC Everio HD camcorder with USB 2.0. The version of imovie that came with our computer is imovie HD 5. I have discovered that this version does not support USB, but that imovie 8 does. However, I'm wondering if our computer will support imovie 8 before I purchase it. If not, is there a way to update our computer so that it will support the imovie 8 software. Thank you!!