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I really like this post :)...
I have a question,
let's say I record some videos on a standard digital camera and want to make a little film to put on youtube.. does the mba i5 128gb have what it takes to get this done just as good as any other macbook?

You should be fine. The only potential issue would be the lack of the more available memory (only 4 GB). That being said, I've made 30 minute long movies on an older mac (2004 for a high school class) that I am sure wasn't a computer that had 4 GB of memory. You will be fine. Buy the 13" i5 and win.
 
The i7 is better than the i5. If you need to save money get an i5. If you just want the faster processor, get the i7. That's all there is to it.
 
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