Hi, so I decided I am going to buy the surface pro 3 for school. However, I was wondering if I should get the i3 or i5? I am only using the surface pro 3 for school work (mainly one note) and netflix/ internet. I don't plan on playing games or doing anything extensive like using photoshop on the surface. However, I will be using onenote a lot and I am not sure if that will slow down the surface. I wanted to save some money and buying the i3 will save me a lot (at the store it was a 200+ difference! yikes). Also, how is the battery life on the surface? does it differ between i3, i5 or i7? thanks for the response!