If Rowland made PC cases.....

There are a whole range of companies that make media PC cases... Try googling Ahanix, Antec. These puppies typically aren't cheap, but do offer a good range of in/out options and--most importantly--are typically configured to be *very* quiet...

My favorite tho', is the pre-made Niveus Denalis...

Here's a link to some I just pulled up--can't vouch for the vendor, but there are some pics:

http://www.pctoyland.com/sub_ComputerCases.htm

Hmm... The Ahanix link there didn't work. Take a look at this:

http://www.ahanix.com/dvine5.html

The Silverstone cases look pretty nice too.

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...