Can't say much about the fans you listed, and you didn't say what kind of CPU you have... I'm using a ThermalRight HR-01 with a Scythe Kama fan and it's very quiet - pretty much inaudible compared to the stock fan on my old 2.4GHz Pentium 4 system.
^+1. If you need to get it quieter, take a look at some Scythe fans. You can swap out the fan on that S1283 with another 120mm fan. Also look in to a Fan controller.
Message edited by Shadow703793 on 08-27-2009 at 05:28:50 PM