I got some good info from this thread, so I thought I'd post my results.
I got a PS3 for BD viewing, and quickly found that it's fan went bonkers a few minutes into a movie --- the PS3 definitely doesn't like being in an enclosed cabinet.
After reading posts in this thread, I got the SilenX 4-fan controller and two Scythe "slipstream" 120mm 1600 rpm fans. Cut some holes in the back of my cabinet and mounted both fans to exhaust (they sit on either side of the wire hole. The PS3 is on the top shelf of a two-shelf area in a TV stand). The fans are huge (I've put 120mm fans in a PC case before, but just wasn't remembering how profoundly large they are...
I thought that perhaps I'd need to add a partition of some sort to force airflow to come across the PS3, but it hasn't been necessary. The shelf the PS3 sits on stops short of the back wall of the cabinet, and I was afraid air would just flow up from the lower level and out the fans, and the air around the PS3 would just sit there. There is clearly enough airflow past the PS3, though --- I watched an hour's worth of a movie with the cabinet closed and the PS3 was cool at the end, and the PS3 fan never started roaring.
The scythe fans are set to about half-speed on the controller, and are barely audible with the rest of the system turned off
. They are audible in the sense that if you turn them off, you realize that there was background noise before. I'm pleased by the sound level; the PS3 fan sounds like a train going by when it comes on. This is an improvement.
A hilarious side-effect; After I installed the fans, hooked everything up and tested, I discovered that my Dish DVR was acting like someone was constantly hitting buttons on the remote. I determined that it wasn't my remote that caused it (the dvr was changing channels constantly!). As a stab in the dark, I took off the RF antenna that the DVR has on the back (I'm using an IR remote, not the RF one). That cured the problem. The fan controller or more likely the fan motors are sending out an RF signal at just the right frequency to control my VIP-722! Never saw that one coming.
Finally, I'd never bought from FrozenCPU before (NewEgg was out of stock). I commend them --- a really fast, pleasant experience. Here are the products I used.http://www.frozencpu.com/products/64...1225SL12H.htmlhttp://www.frozencpu.com/products/59..._IXA-FCEX.html
Cheers, and thanks for all the helpful posts.