Hi, I made this movie just now.
Just adding in, the reason I'm using one hand is because normal bench press with your own weight is easy. Anyone can achieve it in under a month in the gym. And the reason I'm using a bar is because my gym's dumbells only go up to 40kg which is like 5 sets of 30 on chest press
http://www.youtube.com/watch?v=QoYSueKwp4g