OK Mac users, tell me what GPS you use and why. I use a Garmin and have the Garmin TC for Mac but am not confident about the numbers. It would be great to have something like Sport Tracks, which can only be used in Windows. I am playing around with the TrailRunner software but am not all that impressed. The MacGPS Pro is $60 but it doesn't seem to use air photos. Anyone have that software?

(Yes, I am new to Mac. Got one for my movie making. This machine is in.cred.i.ble! I still have my Windows laptop, but I think it's going to get a lot less use now...)