What DDR3 do i get? 2133? 2200? 1600?

So I'm looking to buy some 4GB ram, and I've heard that G Skill Trident, Ripjaws, and Patriot Viper II Sector 5's are the best cards for me. Not sure what memory standard I need to get though, do i get 1600 and overclock it? Do i start with 2200? is it ok if it's 2133? I also heard goodt hings about mushkin, but none of the review websites mentioned it.

This is my build
Case: haf 932
CPU/ MOBO- Core i5 750, Asus p7p55d-e pro which supports DDR3 2200(O.C.)/1600/1333/1066
-I've seen quite a few reviews that said that the ripjaws were a very very tight fit in their builds w/ mobo/cooling, so it's my last option. I saw the Patriot Viper II Sector 5 2133 was at 139.99 instead of 189.99 (w/ 50 MIR) so I was leaning towards that but the trident is similarly priced at 2000. Am i supposed to get 1600 (which would be great b/c its cheaper...)
I plan on overclocking, ideally something noob-friendly and not too energy intensive.


I haven't bought the mobo yet, but there are a few combos included in there as well, if one of those are particularly good maybe i should spring for combo for extra discount?
ocz reaper/gold (been hearing terrible things about ocz ram though), corsair xsm3. Ripjaws and Trident w/ DDR3 2000 also included in combo options.

Or should I get a fan w/ it? They have some good looking stuff that might be good for the i5 750/mobo like the master cooler 212/etc,, not sure what cooling system to use either, so if one of the combos in there w/ the fans are good i might just get that.


Rest of build
GPU- gtx 460, 1 gb sonic platinum
PSU- xfx 750w
not decided on sound card
ssd- probably vertex 2 extended 120 gb and samsung f3