I'm thinking I need something to help me better understand my runs and my pacing. I've been researching various wrist gps devices to help me with this so I can train smarter for NYC. After looking at what's out there, I'm most interested in the Garim Forerunner 205. I keep going back and forth about getting one that's also a heart rate monitor, but I'm reading that the monitor isn't that reliable and I'm most interested in knowing my distance and understanding what my goal marathon pace feels like.
Any thoughts on the Garmin's?