G'day! I am currently using a very old iPhone 3GS and I am strongly considering upgrading to the iPhone 6. (It's about time!) One reason for upgrading is that I want to use the new phone to record HD videos of yoga classes I teach (I'm a yoga instructor) for sale from my website. Is a 64GB model sufficient to record 2 hours of video? I own a few HD movies I purchased from iTunes and these seem to top out around 7-8GB (usually less). So I am guessing 64GB would be more than enough to record the video before I import it to my Mac for editing and uploading to my website. Most videos I want to record will be much less than 2 hours but I'm using that figure as a safe upper limit. Any feedback appreciated! Thanks, Drew.