Watching Progress

Up until this point in time I have relied solely on a standard running watch to monitor my running progress. I do find, however, that I would like to have a better understanding of my pace during a run. I am curious if any of the estimated 2 - 3 people that read this blog have had any experience with either the GPS or Footpod enabled watches. I have taken a look at both the Forerunner 50 and the Polar RS200sd. I am just curious as to whether anyone has anything negative or positive to say about either.

My wants are something that would allow me to monitor my current and overall pace while running and provide me with an easy way to monitor more detailed information post-run. I guess the other aspect of this would be if anyone recommends a GPS watch over the ones mentioned above and the rationale as to why.

Note: I am going to test out my knee in about an hour... wish me luck. I'll let you know how it went.

Update: I ran for 1/2 hour this afternoon easily. Good and bad news. First the bad; there has been no improvement in the knee in the past week. I still have a dull ache while running... though not otherwise. The good news is that while running for the 30 minutes the pain didn't get any worse. I think I will stretch things out a little distance wise tomorrow to test it further... unless, of course, things tighten up overnight.