BodPod is relatively cheap (could cost you anywhere from 25-50 dollars) and is very fast. I had one done a couple of months ago. I would go with that one. I don't know what kind of hand device you used, but I would suspect it was very inaccurate. If a person really knows how to use the calipers, that can be an approximation. Most people don't do a good job though.
On a different note, did you go to WVU? I went to undergrad school there as I grew up in southern W.V.
In discussing this question with an exercise physiologist, I was told that the BodPod requires regular calibration and most facilities do not calibrate as often as they should. Hydrostatic is apparently more accurate for this reason.