Nike GPS is very good, got one to replace the (largely inaccurate) sportband. It doesn't need the footpod - you can use one if you train indoors (treadmill, no satellites) or as an insurance policy if you lose the satellite signal - mine never has.
I like the Nike site and the simplicity of the Nike watch/system, but it's alot simpler than Garmins - used to have a 405. Garmin will give you alot more stats and features. I never used them and just confused me, but each to his own.