One of the many benefits of full tower PC cases are the many 5.25" optical drive bays they have (5 or more) so if you happen to own one there's no doubt you will most probably look for ways to make use of them. Personally i always use at least two in each of my test rigs one to mount a fan controller (two 5.25" bays sometimes) and the other to either mount a DVD-ROM or a Blu-Ray drive. Lately however we've started testing several 5.25" hard drive cages inside which you can mount up to four 3.5/2.5" SATA/SAS drives by making use of just three 5.25" optical drive bays. A few weeks back we tested the BPN-DE340SS hot-swap storage bay adapter by iStarUSA which not only managed to keep the temperatures of the SATA III drive we used for testing at a minimum but surprisingly enough it also improved its read/write data transfer speeds. Well today on our primary test rig we have it's cousin the BPU-340SATA military grade hot-swap drive cage.
Slow computer got you down? Maybe a hardware upgrade should be in your cards, if so this guide to the Fundamentals of Upgrading a PC is an invaluable read. PCSTATS Tips