A good review with pictures can be found at
http://www.whiningdog.net/Reviews/PCs/C ... /index.php. In fact, near the end they talk about cleaning up the cables and have a picture of the interior. This is exactly what my PC looks like -- a mess. The only difference is my SATA drive is one bay down. Notice there are passive air inlets on the front and the back.
Yup -- I'm going to clean up the wiring. And I do clean out the dust frequently.
I must confess to having a dumb moment. When I checked the drive, I had the case open for a bit. DOH! After operating for a while with the case window on, the drive is only slightly warm. Got all excited about nothing.