i just orderd the zalman 7700 all copper one, i'll let you know how it goes, i'm gonna oc with it and use some as5. that's for the 3.4 775 skt comp.
for the 478(mine) i'm gonna get an 112 tower from thermaltake and put two 90 silent cat fans on it. she's 2.56 i'll post on that one to.