Currently have the m3, its quiet fairly quick with rare chugs when I'm multitasking a lot but nothing major. I do a lot of school, notes, video, internet, and sometimes low end gaming (wow, civ 5 etc). its nice that its fanless, and runs wow at 1600x1200 rest decently. Will the i5 for 100 more be a better product for me, or the m3? my concerns are if I go i5 a lose a lot of battery and always have the fan kicking on while gaming and multitasking.