At first, I thought the little shroud on the Antec P182 (also on the P180) was a little annoying because it broke up the horizontal space that I could otherwise use for piling up misc crap. Lately, I’ve been putting my external hard drives on top of the shroud. The airflow helps cool them down. My 7200 rpm 2.5″ drive in the Macally PHR-250CC (an excellent enclosure) gets really hot, and this will definately help.