Today I purchased the "Ettore 49036 Grip 'n Grab" from Amazon, the same one that hojack recommended from his personal experiences using it.
Selling points were hojack's recommendation, a steel cable for pulling the jaws closed, a padded gripper with good closing characteristics for grasping cars and engines, and the rotating handle, as well as Amazon's user-friendlky return policy!
Thanks to all of you who participated in the selection process. I'll let you know how well it works after it arrives next week.