My Swing (NotBillCosby)

I have been playing golf for quite a while, but it was only sporadic and with friends.  Lately, I decided to get serious about the game and took a couple of lessons to work on the problem areas of my swing.  I think there is something wrong with the downswing, but not quite sure what it is for the life of me.  Would really appreciate some great feedback!

I've been Playing Golf for:​ On and off for the past 5 years, but seriously in the past 3 months

My current handicap index or average score is: 20+

My typical ball flight is: Inconsistent

The shot I hate or the "miss" I'm trying to reduce/eliminate is:  Seems like an over the top swing, not sure how to flatten it out. 

Videos:

Just because I am paler in skin color, doesn't mean I think jello pudding pops are the bee knees and kids say the darndest things. Swing comments please, anyone?
 

Hey fellas, thanks for the comments.  I agree there is overswinging involved.  Maybe I am using too much arms and hands and bringing it up there rather than letting my shoulders rotate.  I agree that there may not be enough bend, which probably explains my frustrating in find the slot and my inconsistency with shots.  Thanks Beachcomber and poser for pointing this out! -NBC

I think I have always been told you bend at the hips, rather than the waist. But I agree.
 

Thank you Poser, Beachcomber and MEfree for all responding. Those comments really helped me out a bunch. I'll have to upload the improved swing shortly.  I am hitting it much better AND more consistently now.

OK so a checklist of things I have been working on:

1. left arm and right arm straight at takeaway to produce a shorter backswing and keep the left arm straight to backhand the ball

2. keep hands more on the inside to achieve depth in the backswing

3. rotate shoulders more vertically and have left shoulder point at ball - I did this and I can feel that I can power pivot through the ball easier this way

I'll upload something tonight and see if there are any other major issues. My goal is that I really want to be able to hit the ball and see/hear it zip through the air with more acceleration like I see the better players do.  Most the shots I have just seem to float rather than get that piercing trajectory.

http://www.youtube.com/watch?v=U71MnmBGnUs&feature=plcp

If embedding doesn't work, link is on top.

Updated swing.  How is this for the takeaway?  I think there seems to be an issue with the wrists in the downswing.  I hit a lot of pushed shots and the ones that managed to go straight were weak.  I did hit a couple that went very nice when I did something with the wrists and I had a feeling like the club was behind me and it hammered through.

Exactly.  Thank you for letting me know.  It feels easier to get the right elbow tucked in than it did before and I think this corrects that. I have no idea to properly hinge/unhinge the wrists.  I think I did do it correctly a couple of times - not sure how - and it felt like a slingshot when it released.  Not sure if this is what I am supposed to feel, but by the look of the ball path, it looked and felt right.
 

I use a neutral or slightly weak grip. I'll try to get a picture of it sometime, but from what I am told it is correct.

Thanks Beachcomber, I appreciate all your helpful support.  Reputation added.
 

Would anyone consider this progress?  What is still missing - I wish I were hitting it further but I am happy with this so far.