When I was thinking HTPC, I stared long and hard at the A-Tech cases--http://www.atechfabrication.com--especially the Heatsink 6000. No fans, nice and quiet.
I decided I didn't want to really do video, tho', so instead I bought a little Serener headless PC-- http://www.logicsupply.com/product_info.php/cPath/49/products_id/372. Its fanless, and the spinpoint drives are dead silent. I've got it hooked up to my Waveterminal and it pulls audio files off my terastation. Since there is no monitor/mouse/keyboard, I use a Viewsonic Airpanel--a 10" touchscreen--to run a remote terminal session. Works great--I can sit on my couch and have touchscreen access to all my collection...
I decided I didn't want to really do video, tho', so instead I bought a little Serener headless PC-- http://www.logicsupply.com/product_info.php/cPath/49/products_id/372. Its fanless, and the spinpoint drives are dead silent. I've got it hooked up to my Waveterminal and it pulls audio files off my terastation. Since there is no monitor/mouse/keyboard, I use a Viewsonic Airpanel--a 10" touchscreen--to run a remote terminal session. Works great--I can sit on my couch and have touchscreen access to all my collection...