fans and fan controller

[patrick0982]

i want to upgrade att 3 of my 80mm fans and put the Thermaltake fan controller in.. i was wondering what are the best fans to run, i am lookin for somethin to push air and also be VERY silent. my computer is in my room so i dont want to hear it run when i sleep or anything.
also i got a blower installled and want to keep it in if you all think its worth it?
and do i need to install a EXHUST fan? if so where can i get one and should i put in in my rear?

please let me know!??????
thanks
patrick