Picked up a Garmin Foretrex 401 at REI for full price, $250, + CA sales tax, less last year's annual dividend and expecting something like a 10% dividend for 2009 purchases. It's been getting very mixed and scanty reviews, but I want something for both traveling around and for heart rate monitoring. Amazon had the best price on the associated heart rate monitor.
I had found a significantly better price at PC Nation but, once the PC Nation on line ordering system found out I was in California, it wanted an additional 9% use tax. REI has the best return policy in case the Foretrex 401 turns out to be a turkey.
Garmin's web site doesn't describe where the serial number is. It's under the batteries.
Garmin's WebUpdater recognized the unit, but found no applicable updates.
One set of interesting functions is for free fall exit and descent management, "jumpmaster" functions, though that's a bit of a misnomer since besides calculating the High Altitude Release Point it can be also be used once out of the airplane to manage both the free fall and under the canopy parts of the descent.