How to transfer my pictures and videos from the iphone to the imac?

I plugged in the iphone & then went to Itunes. I don't know what it's doing, it is not showing me any pictures being transferred, it says it's syncing, but what worries me is it says 11,489 photos & I know I don't have this many in my iphone. I'm worried about what it is doing right now. Someone said to me, oh it's so easy to do just plug in your iphone & go to itunes. Well, I did that, it's not easy for me. What can I do? Why can't these be put into Icloud? I don't know how to do that either! Someone said at a verizon that could be done, but then someone else said I had to plug in the iphone & go to itunes & it was so easy & told you just what to do. She said the Icloud wouldn't work, why not? Well, the Imac hasn't told me what to do, and whatever it's doing is not what I wanted it to do. Why doesn't it show pictures being transferred, it does when I do this with my digital camera. Please. What can I do to save my pictures and videos on this cell phone? I have to return it to someone & I would be upset to lose these things. I'd pay this guy a lot more than what the phone is worth to keep my stuff, that's how precious these are to me. What do you think I should offer him for the iphone 3. I told him the hassle I'm going through but he doesn't seem to care & wants to sell the phone on ebay. I see the phones are selling for around $125.00 on there, do you think they are worth this?

Hi, you just get iphone to mac transfer for help.

http://www.iphone-to-mac.com

It worked for me.