Just FYI for anyone interested -- the cable from monoprice works great.
Just got mine today but I had to swap my iPad so I am not able to test the "full discharge to full charge time yet.
One thing about that cable you need to be very careful about is since it is so thick right down to the connector, unlike the OEM Apple cable there is not nearly the same "flex" at the iPad end (try bending them both at the end and you will see what I mean). When you move the cable while it is plugged in to the iPad it causes an extreme amount ot "flex pressure" on the iPads charging jack which is not good.
If you use the iPad while this cable is plugged in and move it around a lot that too causes a lot of pressure on the iPad charging jack. Not sure if i feel comfortable with that. Just for charging overnight and not moving the iPad around I am sure it will be fine but other than it could cause a problem.
I also notice the plug doesn't slip into the charging jack nearly as smoothly as the OEM Apple cable although I have noticed that with any non-Apple cable.
For me I think the best answer is the original Apple cable with a "heavier gage" USB extension on the end. That way the iPad jack isn't as stressed when the cable is moved around.