What passey89 linked you to will worked great for just a cpu although I'd buy some Scythe Gentle Typhoon 120mm 1850 RPM. Although they say 28 db you really can't hear them, and I'm the really fussy type so was surprised at how quiet they are and the amount of air the push through a rad, People always go on about Noctua fans being quiet but I'd say these are much quieter. The kit you linked to first op wouldn't fit in that case as it'll only fit a 240mm rad.