"The XtremeGear HP-1216B heatsink utilizes a dimpled surface texture on its raw aluminum fins as well, and quite amazingly retails for $29! Standing 153mm tall, the HP-1216B heatsink is equipped with a single no-name 120mm fan that rotates at 2000-1000RPM and is illuminated by four blue LEDs. At full speed it's moderately audible, and at the slowest speed you'll get good performance a nearly silent levels. "
Icydock's tool and rail free backplane module is called the MB973SP-B. It stores three 3.5" SATA hard drives in the space of two 5.25" drive bays. No hard drive rails or tools are needed, just open one of the three bays and slide a SATA hard drive in right side up, then close the door. On top of that, forced cooling is built in to prevent excessive heat build up, something that isn't always available (or plugged in) within the PC chassis.