I'm thinking of getting a new body, and I've narrowed it down to either the Sony a65 or the new Sony a57 (invested on some sony glass, so want to stick with them). I really like the a57, and it would be a no-brainer except that it has no GPS. I don't have GPS on my current camera (a300) but it sounds like a great feature. The question is: to those that currently have in-camera GPS, do you find that it works well and do you consider it to be a must-have feature? I'm worried about getting the a65 and then finding that the GPS takes forever to lock or that is not so useful in a way I don't realize yet. I do a little bit of travelling so if it works well I think automatically tagging locations would be very nice. Any other opinions on these bodies would be nice. I realize the a57 has an edge on low-light performance, but they're both probably much better than my current camera anyway. I'm mainly thinking of the a57 to save a couple hundred bucks. Thanks for any feedback!