1:do not get 1.35v ram. they have no real advantage over 1.5v ram
2: get a ivy bridge chip. they are faster clock for clock and are more power friendly. a good one is i5 3550 or i5 3570k if you ever do plan to overclock
3: if you are going to get ivy bridge, get a z77 mobo. a good one is a asus p8z77-v or the p8z77 LK. they are both about the same. another board that i recommend is a msi z77a-gd55-65. they have a great one touch overclocking.