Just idly curious how people with OSX interact with it. I have a 27" Imac with a second monitor, most of day to day use is with an MS mouse that I've had for years. I got the mac with the track pad and I do use it for a few things, mainly Apple software like aperture where it seems to work much better. The Mrs has a macbook pro and seems far happier with the trackpad as a primary device but I find the large screen lends itself to a traditional mouse and interaction across that size screen feels more natural. I dare say with tweaking I might be able to break my dependence on two separate devices but I'd be interested to know if I'm alone in hanging onto my Mouse when using OSX.