Anyone have any experience with the Nike+ GPS sportwatch? I run about 4-5 times a week and usually log 20-50 miles depending on the week. I have a Garmin Forerunner 305 that is about to die, and need to replace it. I have read a lot of the the reviews, and it seems like the Garmin is a bit better watch, but also costs about 2X as much depending on the model. What I need out of the watch is for it to tell me distance, pace, time and heart rate, and hopefully have good battery life. I really like the design of the nike+ watch and the price, but am worried I will just be replacing it a year from now. The Garmin watches I like are the 220 and the 610. Anyone have any input on the route I should go?