Magellan eXplorist 210 Handheld GPS ($179) says:
GPS Accuracy Position 3-5 meters
GPS Accuracy Velocity 0.10 knots RMS
Garmin eTrex Legend GPS Navigator: (the cheapest one i've seen, 120)
GPS Accuracy Position < 15 meters, 95% typical
GPS Accuracy Velocity 0.05 meter/sec steady state
the cheaper one doesn't have as many buttons... the eXplorist 210 odviously got some more features.... if i get one, i would mostlikely be more happy with this one... i just gotta see if its worth the $... of if theres any better ones out there within the price range