Check out this nifty little gadget from Fujitsu, its called the Calmee Space, which is kind of a weird name, but from the looks of it, it allows you to dock your spare hard drives. Just like they were cell phones, regardless of whether they are Laptop or Desktop, you just drop them in.
I don’t know right now if it only works with IDE, only SATA, both, if SCSI is an option, I don’t know. However, if it does in fact work with IDE and SATA as well as their laptop counterparts all in one unit, then I want one now.
It is headed for the Korean market as it stands, but hopefully it will hit stateside too. Its hitting Korea by the end of the month though for an unspecified amount.